@sarastevens77,
Same sex attractions do not define your sexuality. Neither do same sex experiences. So far what you have said, if not common, is at least not unheard of. You may need a trusted counselor to help you further.
Some of what you may get on a2k is less than helpful.
As far as your friend is concerned, apparently the experience exceeded what she had set as a boundary. You will have to give her the space she seems to need. I can't say for how long.