This is wild, legit went through the same exact situation abt 6 months ago. Nta but would def reccomend ending things sooner rather than later if you know how you feel. I wasn’t sure one way or the other and ended up dating for abt 5 months before I broke up with her and it really hurt her, should have done a lot of things differently
I kinda think you’re TA because you’re playing with their feelings by entering an entire relationship with them and then changing your mind shortly after. You should have known better than to commit to someone without knowing for sure if you’re even attracted to them. It just seems really immature and like you’re not considering how your actions affect others. Don’t force the relationship tho, just please be gentle and kind with them as you tell them how you feel