How to trust partners again?
I had a relationship where I was absolutely blindsided. It lasted 3 years but the last few months or it she started withdrawing, telling me she was sad and not feeling well and I accepted it and tried to understand. Then suddenly out of nowhere she started ghosting me, not replying to phone calls, not wanting to see me, texting once a week instead of everyday and telling me she's sorry but not elaborating more, and then suddenly just dipping.
I understand that relationships require two people and if one person wants out then they're completely entitled to it, but I at least deserved a good ending. I wasn't going to beg or make a scene. I would've accepted it, felt sad for a while, and then moved on with my life like thousands before me.
Now because I was never given a proper ending, I can't trust anyone anymore. Even when I meet someone and there's a spark, all I can think of is will she also abandon ship at the slightest discomfort without telling me too?
How do you rebuild trust after having it shattered?