Weird between my bestfriend's girlfriend

Guys posting here explains the level of my problem.
So this girl, her name is mollie. I'll explain how me, my best friend and mollie met.
I met my best friend, anand when I shifted back to UK. It was a new city, a new school and new friends. So this girl mollie, I met her on the opening day where you basically go into school to choose the subjects you're going to be studying ( my first year of A levels)
Now I met my best friend anand in my economics class. We hit off quite well because we have almost just the same taste in every possible thing you can name, we smoke, drink, smoke weed at times together every time. And since we both turned eighteen, been going clubbing together as well. He's Mongolian, and I'm part Spanish and part Turkish and we both get along with girls and other guys quite well.
Now this girl mollie I was friends with her since the school.began, however she was in a relationship, a new one with this guy who was basically a noob at relationship, he was insecure of himself, needy and etc. So in short, me and mollie hit quite well off since the beginning that made her bf a bit jealous, so we kind of stopped talking for about 4 months until the night of 24th February.
As far as anand is concerned, he never really knew her until the night of 24th as well. Oh and mollie, she broke up with her bf about a week before I came back turkey
Now how did we meet, that was when I came back from a holiday from Turkey, and the next day around midnight when me and anand were chilling, smoking and drinking, just us two, I said hey I know this chick mollie, she just broke up, we might as well call her up and hangout with her. He said he'll yea man lets go.
Called her up, bought a couple of drinks and went to her house. Now that night was weird. Because mollie was vulnerable, just broke up and everything, she was easy to catch. Anand's game, thought its poor as fuckk, he somehow managed to kiss her and do dumb shut whilst drunk( something like lying down, her on top kissing etc)
Anyhow the next day mollie and her were all like **** tf happened ?
Bear in mind , they did not talk until next Saturday when we met up again. Both of them were talking to me separately, mollie said it meant nothing more than just a drunken kiss ( she does that often) and as for anand he was like Shut I don't remember what the **** happened.
So I was like oh alright. Now I did have a little crush on mollie since the start of term so I wanted to get with herr.
Now next week, I called everyone again, started drinking and again, they made out ( I didn't make any move because I tend to overthink a bit when it comes to my crushes ) same thing happened and next day mollie was like **** my life.
Now we had planned to watch a movie, just me and mollie on Sunday, for the first time. So here, like the typical guy I am, I said why not we all three go, so the weirdness can go away between you and anand? But I don't even know what I was thinking, don't even ask why, I said to both of them to dress properly and put some perfume on and etc, kind of like a date for then two, and me setting them up.
It went horrible tbh, anand sucked there and I was talking to mollie the whole time, so anyhow we all home respectively. On Monday, again don't ask why I did it, I said to anand to ask her out, and choose a fancy restaurant give it another shot, and he was shitting his pants, I was forcing him. And as for mollie, I encouraged her as well.
So they went on a date, went okayish according to both of them, so anand then kissed her at the end and went well apparently. Now here I was feeling really down, I mean get with other girls but I only had that little crush on her, no one else, so yaknow? Anyhow to cut the story short from here, I always set their dates, set their blind dates, give him ideas on how to please her by doing little things like, calling her by a riverside and talking and bla bla.
Now one night I was drunk, came from a party and called up mollie, said if she was free to hangout at like 3 am in the middle of the night lmao. She was like yeah I'm totally down. There I kind of fucked up, I literally said I liked her a lot in short, and she was a bit expressionless, said I can't really say much because you're best friends with anand and if I do come with you it'll ruin everything. She said stuff like you should've come to me earlier and not now.
Anyhow went home regretted as he'll the next day I woke up. So I sent her a message, whatever I said, still stands, I care about you ( oh I told her how much I cRed about her as well, said even if she breaks up with anand, my offer would still stand ) and anyhow we got back to friends again. Now from here things were all okay, anand I stopped helping him, giving him tips to be a a better boyfriend and all, so he literally went back to going yo her house getting a blow, telling her how much he loves her when he's drunk and all. Now don't get me wrong, now he does like her and mollie likes him as well but, to cut the story short, something very weird happened between me and mollie.
She called me over to her sister's house to drink, they were only 4 people, me her sis, her sis's friend and mollie, anand couldn't make it because he some family issues at that day. Now what happened was that her sis and her friend went for clubbing, it was just me and mollie, so I was feeling a bit sick, asked her to take a walk by this huge ass, a beautiful park with a pond in the middle of the night.
So she said yeah sure, we took some vodka, lemons to do shots and went there. We took some shots, she was a bit tipsy I was totally fine( a Hugh alcohol tolerance ) now we we were just lying on the floor by the river talking about stuff looking at the stars until she snuggled close to me, laid her head on my chest, and so I put my hands around her. Now there, she asked me we didn't talk about what I said to her the other day, and I said let's not talk about it, for the sake of our friendship and mine with anand, I think it's best we pretend it never happened, and there was a weird moment when we were looking into each other's eyes and thereafter she said okay then. And there we just chilled for a bit until her sis called saying she forgot her key so come home
I skipped quite some many details but the twist if the story, I think I might be in love with mollie, and I think she might have a thing for me as well but I think we're both not making any move because we don't want to destroy our triangle. And believe me I do not want to destroy my best friend by trying to hook up with her.
WTF should I do, I'm certain she likes me and funny thing is, people think we're a couple because we're so playful, like she'd always pinch, punch a little in school And we'd always lie down on the fields in our frees chilling together. Like she admits herself she's more comfortable and close to me, like she says she feels she can talk to me about anything than with anand. What should do I guys and if you are going to say about keeping distance, that's a bit hard.
P.s we've had more than one weird moments