ive had a girl from tinder very directly accept a date, which is what i wanted, but now i dont know if i do

From my experience, interaction with these people is just giving them an opportunity to create emotional chaos and cause hurt just for the quick thrill of it. To meet some temporary emotional desire or need that will change every other day. and the rejection will be something illogical. and then they will play this game where they think giving a pretend reason for rejecting you is to protect your feelings when in reality they know they are screwing with your head even more by doing that.