I know two women single (divorced) from 30s, I think.
Both due to man's infidelity.
I have to say first of all that both spent quite a few years either single (first one) or in and out of unsuitable relationships (second one).
But (!)
The first one met a widower she's attracted to through his niece attending a hobby she'd just joined (ceili dancing) asking her to go on a date with him. Theyre together years now, do lots of cruising together, horse races (he's a fan), lots of family stuff.
She sailed for years (yachts and dinghies but never met a single man she was attracted to, or at all, through that). She met men who wanted to have affairs in work but did not go there.
Second one; she had one of two unsuitable relationships she spent too much time on; in her 40s she then met a divorce (his wife cheated) in a hotel where there was a country music gig (a thing here in our rural region), and she's very outgoing so she started taking to him.
Theyve been happy ever since. He's a builder and built their home and an annexe home for her son & his family. It's very nice. Her ex was an alco waster who did some taxi driving.
So, it took them a while.
(I would also point out that both are on the short side for men. Which may have been part of why they were single on the apparently height obsessed dating scene. Second ones h is handsome though. First one I've only seen in photos but he's by no means bad looking).