With every relationship that ended up not being "the one" I lost a little more interest in that whole thing.
Eventually I had been single for so long that it *is* my default now.
Trying to imagine anything else is what seems weird.
Not that I'm philosophically opposed to marriage or a long-term relationship...
...it's just not on my ToDo list anymore.
I'm already a whole person and not merely resigned to but actually content with things as they are.
Never say never but at some point... yeah, it's probably never.
The most important thing is to not let that poison everything else.