My exes keep marrying the women they date immediately after me…

I (27F) recently found out that my ex-boyfriend (27F) of 1yr just got married in January of this year, 2025. We broke up officially in January 2023, but had a bit of an on and off until around May 2023.. It was a very serious relationship — spending holidays together, meeting parents, spent over 1k on his birthday trip, sharing a church home. The breakup tore me a part, and really seriously took me over a year to recover from. However, curiosity unfortunately got the best of me last night and I searched his Facebook only to find his relationship status change and a new woman (33?F) with his last name hyphenated. I also realized she went to our church, and became a member around the same time I did as well. Given the timeline, it looks like they went from “hello” to “I do” in ~1.5 years?

This isn’t the first time an ex has ended up married/engaged in their next relationship immediately after me.

Clearly the relationships weren’t mean to be, but I can’t help but still feel “why her and not me” and “what if I changed something?” I too have dreams of being a wife and mother.

I definitely feel like people have to date me in order to find their “forever.” Like I’m a gateway or something

How do I combat negative self feelings like this?

TLDR : my partners always seem to get engaged/marry women they date right after dumping me.