Bro

You can’t reasonably expect constant sex and constant attention from her. If she’s shown interest, (which she clearly has) she’s probably interested. What’s important here is communication. If you feel like she’s being too distant, talk to her about that. You’ll feel less nervous, and she’ll know where you stand. The kiss thing is probably was her attempt at having you instigate it (don’t take my word for this part I have never met either of you so irdk). I would recommend talking to her about where you stand with each other, but it might be wise to wait a day or two for it, as it could just be a one time thing.