Awww...sounds like she has dodged a very big bullet. Once time does its thing and the feelings fade, she'll be back on her feet...hopefully Covid fades at the same time. I think her work stress likely plays into her distress as well. It does sound like she might be dealing with some "daddy issues" if she refers to him as the sperm donor. Dad's relationship with their daughters often set the pattern for their romantic relationships. Might be worth a few appointments with a good IC for her to explore. (((HUGS)))