To Be Rejected, Or not To be Rejected?

Topic: in the begining confusion..It pretty much started When i was 14, Just started a new school, Already had friends attending there, so pretty much new everyone, my best friend's Munchie and Bella were like siters to me, so i was'nt that nervous starting on the monday.
When the first day of school came i was introduced to some friends of Munchie an Bella's, Bella introduced me to two girls pretty much exclaiming they were lesbians, me at the time was straight was pretty shocked there was lesbians at the school, the girls were called Kelly and Casey, and i was introduced to them by Bella who randomly said "oh and their the lesbians!" my first thought of Kelly was she was looked a little weird and as for Casey she was English so weird enough to talk to her considering i had no idea what she was saying because of her accent and my good old ausse accent didnt really help our conversation, it was more like she could understand me but i had no idea what she was saying to me.
Anyway's we were in most lessons together and for some reason i felt differently towards her than i did towards all my other sheila friends.It was like every little touch lasted forever an would always give me shivers. We started to hang out alot more and i new where it was all going so i freaked out and i exclaimed i was straight, trying to throw her off balance.
After a few days had passed she told me she liked me, this made me feel awkward? but in some way i just wanted to scream it at her that i liked her 2 instead my fear of being judged got the better of me and i played it off cool as in like its ok it didnt matter were friends, at that current moment i had a boy friend any way, not that i was really even interested in him, but i had one.Gradually more at school when ever he would be near me she would be all weird around me, and usually walk off or just go silent (and i could see it was signs of jealously).
The following weekend i had asked if Casey wanted to come to my house for a few drinks with Bella and Munchie, they agreed and the friday nght came,after having a few to drink we played truth or dare, and Casey had asked me if i had ever kissed a girl?