Dear Tineoidea,

sorry, I got the wrong impression, since you said there was some romantic interest from your former friend towards you in the beginning of your relationship, plus your name sounded female to me, so I concluded that you were a woman. Sorry about that.

This throws a different light on the problem, since of course, she isn’t confused about her sexual identity, but she really turned 180 degrees for seemingly inexplicable reasons.

I’ll quote those same paragraph I quoted before, which shows her confusion:

What surfaced during this interaction is that she indeed still loves me, misses me a lot and doesn’t feel romantic love when it comes to my former friend.
Yet she still wants to try things with him and absolutely doesn’t want to give us two a chance, she wants to move on.

Why would she want to “try things with him”, if she doesn’t feel any romantic attraction to him? Why is she breaking up with you if she still loves you and misses you? It’s a mystery… Perhaps he managed to manipulate her so thoroughly that she doesn’t trust you any more? Perhaps she had some reservations or worries about you in the past, and he confirmed her doubts, telling stories about you that portray you in a bad light? She did say “I don’t know myself”, so maybe she is easily swayed and manipulated?

Based on your description, she doesn’t sound like a narcissist to me. What makes you think she is a narcissist?