Sadly the issues we face are more so rooted in other difficult topics combined with this other person. I'm well aware that people online exist only in a vacuum, I would know since my first long term relationship also started as a 1.5 year only situation.
My decision for potentially moving on from this relationship should, and will be based on if I need to be by myself, not if I want to be with this other person. She can't be a deciding factor in what I decide to do with my future. This whole situation does add to it but it would be out of principle and not because of a specific person. If that makes any sense.
Sadly, she herself has not explored yet in the last 1.5 year and that's precisely what I wished she would've done. Because now it's still extremely uncertain what she even wants or needs. ):