Have been friends with this girl from uni for a few months now. She appears to be what people describe as "a unicorn", she's cute, very friendly, fun to be around, doesn't drink/party comes across as very innocent and shy etc.. For the past few months we've just hang out as friends - playing sport, going to movies together etc. but the other night we went out dancing, I tried to make out with her and she reciprocated. When I went to drop her off home she suggested we go to a nearby parking lot to spend some time together, we made out for a few hours and she started grinding on me in the backseat and was grabbing my dick but was begging me to "make her stop" since she didn't want to rush things, but wouldn't be able to help herself unless I stopped her. I was feeling really uncomfortable and ended up stopping her, said we could do it another night and shes coming over my house tomorrow.

After what happened it was a bit of a mind fuck. She doesn't really seem like the girl I thought she was now. Other things she said like "oh wow you're the most ticklish guy I've ever been with" and "I just feel so relaxed around you which is something I haven't feel with someone for so long" are kind of playing on my mind right now and I'm wondering if shes actually completely different to what I thought she was. I was considering a LTR with her somewhere down the line because I get along really well with her and we've got similar ambitions/passions, but now I'm wondering about her past and if it will in any way impact the future. How do you find these things out about a person, does it even really matter? Are the things she said/did red flags or am I just overthinking everything?