Forgiving? A fair bit. So long as I was still "the one," I could really care less what romantic misadventures she has. If she needs a change for a bit or needs to try something new or makes a mistake, I'm fine with it. Just as long as she still loves me (and mainly me.)
I'd consider a personality change not to be a dealbreaker, because it wasn't really a deal in the first place and that's why I'd be attracted to her, so I won't go into what kind of girl I'd get turned off from.
I'd consider a personality change not to be a dealbreaker, because it wasn't really a deal in the first place and that's why I'd be attracted to her, so I won't go into what kind of girl I'd get turned off from.