The only way I could see an abortion strengthening a relationship would be the removal of a stillborn fetus from the woman's body. They'd mourn the loss of their potential future, move on, and eventually have another kid.

Beyond that? If any woman I was dating in my 20s had turned up pregnant from our relations, and then aborted the child without my knowledge or consent, the confrontation I would have had with her after I found out would be the last she ever saw of me. Any dude who continues to bow, scrape, and simp over a woman who literally murdered their child, ending the future of another human being before it is even born, deserves the hell he ends up living in.