We don't know the full context for the kissing also; maybe HE is using this to confuse her enough to get her to agree to keep seeing him? Why is SHE the manipulative one here?
I agree she needs to stick to her feelings for both their own good. However she has tried to turn him loose. She essentially broke up with him in the email. How is it fair or nice or kind of him to keep asking her to give it another chance? He's not respecting her feelings or decision either.
I DO agree it's a flaw to allow herself to be pulled by someone else's feelings, especially when she knows in the long-run it won't work out.
I also DO believe that an ENFP is probably less clear cut on feelings, at least initially, and that's why it's easy for someone else to keep opening a door she is trying to shut. I DO also see N-dom (especially N-dom NFs) as being rather fickle, because value seems led by potential rather than the other way around.
But what's going on in another thread with another person doesn't seem really relevant to me here.
Here, I just see two people who've dated & one who isn't feeling it anymore & keeps trying to end it while the other hangs on. It sucks & it hurts to be the rejected one, but it doesn't mean the other person really wronged them.