What’s the difference between friendly and interest?

My Co-Worker who I like. Asked me almost everyday if I wanted a ride home for like 3 weeks. I said no. Finally I said yes and gave in when he said “when are you gonna let me give you a ride home”

when i I did get in his car he said “finally I get to give you a ride after I’ve been asking and asking and asking”

since then (about a month) he’s giving me a ride. And has picked me up in the morning sometimes. ( roughly 25ish rides home and 4-5 ones in the morning)

its to the point now where he just says “are you ready” when’s he’s leaving and doesn’t ask. ( I’ve never asked)

also when ever we get to my apartment we usually end up talking for anywhere between 10-60 minutes in his car.

Once We were talking. I Said “sorry for bothering you with my problems”

He said something like your not bothering me. That’s what true friends do. I wanna be your true friend” another time I was really sad and having a bad day and he drove me home and he talked is his car for the 10 min drive and for 30 minutes after. We just sat there and he tried to make me feel better and I texted thanks after and he said “no need to thank. That’s what friends are for! Love ya ( my name)

Another time I told him I guy I asked out called me ugly!! He said “don’t take what he said to heart, don’t believe what he said is true because it’s not you’re amazing and you’re beautiful and you have a lot to offer someone” a few days later I told him I used to think they had a point and he texted me “They never had a point, they were never right. You should always be confident in yourself and what you have to offer”.

If I say I’m a werdio or I’m boring he’ll say “no your not”.

He left for vacation and said “when I get back we’ll have fun”