Does this shy girl like me?

So there is this girl in school i like and i added her on fb and asked is this her because my friend told me about her fb account and he wasnt sure and she said yes this is me and i just asked her randomly whats up? and she just seen me.And the next day my good friend came to me and he brought her with me and it was very awkward because i wanted to like shake hands and we were looking at each other and i lowered my hand and then she raised her hand and it was a awkward shake.So i told my good friend i want to get to know her and later that day he said she wants to know me better too.And i said like sure and we went to her and i said hi and it was awkward too she was smiling all the time and said she doesnt go out and i didnt know what to say and i just said i have to go ill see you next class.So i was going to her and my good friend said she wants to ask me something and i said and that is? she said she didnt need to ask me anything and everyone was around us and she started choughing etc. and i said sure.So i asked her was that true she said he was lying(my good friend) and she said she doesnt want to go out i tried everything to talk to me in school she said no and i stopped texting her and the next day i saw her talking to this guy and i wasnt sure what are they saying or doing i just saw she just left with him and didnt see her no more and i realized they got into a relationship and i was hearthbroken.They dated for like 2 weeks and broke up and i didnt knew they broke up and i asked her for it and she said yes and i was there for her she was sad and everything that comes after a breakup.So im texting her for like 3 weeks(like every 3 days) and i know what she likes and everthing and i asked her like 2.5 weeks before to talk in school and she just said no and ahahhaahaha and i was like ok and back off.So today i asked her and she said i can come and talk with her she would like to talk to me.But before that i said i will talk to her she said ok and when i say hi to her she just walks past me and says nothing.She looks at me at school keeps a eye contact from the distance and looks at me i say hi she just keeps the eye contact and walk past.So does she like me or not she gives me weird signs.