Im a girl and i liked this girl, we fooled around, and now its ackward

Sooo there was this girl and she was a senior and I was a junior and shes openly bisexual and every time I went over to her table she would give me this look..Idk..but I thought It was hot (let me note we were friends before this but I always thought she was sexy).. so I started coming onto her and she didnt seem to have a problem with it. I would sometimes slide my hand near her crotch and she'd move my hand away and giggle, she let me put my hands in her pants but not close enough to get to her vagina..she had a boyfriend the time I was flirting with her too. When we came back from break I didnt want to seem clingy so I kind of didn't talk to her for a couple of days. I started seeing less and less of her but its really ackward now and now I dont know what to do...I didnt want anything serious, just to get in her pants which I accomplished..kind of. Anyways I used to see her around sometimes and it'd be an extremely ackward vibe ...we were friends before and now we never even see eachother anymore. If i could take it all back I would...