<human>: We had a year long, tumultuous relationship that ended about two years ago. It took me a long while to get over it and I consciously stayed single so I could figure my crap out. She, on the other hand, has always been on a quest to get married, and once we broke up she very quickly started seeing someone (someone she cheated on me with, who she claimed to despise).

They very quickly became engaged, and then broke up. After that, she started seeing my former roommate. All of this I picked up through the grapevine, as I had cut off contact with her.

Now I've heard that she's engaged again, to a different guy. It turns out it's this guy that she had dated years back. The thing is, she always told me about how awfully he'd treated her. He had gotten her pregnant - she wanted to tell him in person and drove a long way to see him, only to find him in bed with another girl. In general, he treated her poorly and disrespected her.

This is the guy she chooses to marry? I'm glad I'm not with her anymore as we clearly couldn't get along in a relationship; I just sort of feel bad for her that she's so desperate to be with someone, and I feel bad for her son (just to clarify, the jerk guy is not the kid's father), who is a great kid but has had to see many men come and go from his life.

Provide a brief overview of the text.
<bot>: My ex-girlfriend is getting married to a jerk she used to date. It's none of my business, but I feel bad for her and her kid.