i think i’m a bad person

I (19F) think i might be turning into a bit of a bad person. I treat men awfully sometimes. I have a ‘roster’ of men that are somewhat interested in me, or at least act like they are. I ignore them quite a lot, I talk to multiple men at once. I do tell them I don’t do relationships, and that I only do casual. I call things off if they get attached, because I don’t want them to get TOO attached, I don’t want to hurt them. I only do this to men who also do the same thing as me, as in speaking to multiple people, keeping their options open. I would never do this to a nice guy with good intentions. But I still think I might be a bad person because of this. I have spoken to my therapist about this, and we know the reason why I act like this, but it’s not an excuse for my actions. For context, I was stalked by my ex-boyfriend about a year and a half ago, made it pretty scary to trust men after that. So I think i might be a bit too harsh to these men. I just would appreciate thoughts, because I’m having a bit of an emotional night and I feel so guilty about how I’ve been acting recently. Thank you :)