Most Helpful Girl
When you first told her you liked her, she probably never really thought about it, but once she knew, you two being together probably crossed her mind more often than not. She could be started to like you or she just feels special that you like her and she doesn't want that to go away even if you two never did date. You should experiment and ask her out on a date. If she says no, then tell her (in a playful manner) to stop getting jelly over you interacting with other girls. If she denies getting jelly then ask why she has been acting strange around you then give her a hug.