<human>: Can you provide a brief rundown of the text in within 3 sentences?

She says she met the guy 2 weeks after we broke up. They got engaged in April and are getting married in June. I honestly believe her about meeting him 2 weeks after we broke up because a couple of my friend's spouses were with her when it happened. There's also really no reason for her to lie about it since it would actually make more sense and seem a lot less crazy if they knew or had been seeing each other before hand.

 

Anyway, this is hitting me hard as hell. We didn't have a bad break up. We were different in a few ways and those differences just became too much for her. She said they she knew she probably couldn't marry me, even though she had been pressuring me to marry her for the last year or more, and broke up with me knowing I had planned on proposing to her soon. We were living together at the time. She has two little girls from a previous marriage that I was really close to, so this break up has been like losing my best friend and my entire family in a car crash or something. It has been very traumatic.

 

 
I was just starting to get over the break up and starting to enjoy life again. Then she hits me with this emotional atom bomb by marrying a guy after 2 months of knowing him. All the depression that I had got over is slowly creeping back in. I'm concerned about her, her kids, and I'm just sad about the finality of losing her for good. Posting this out there in hopes that someone can help me make sense of all of this.
<bot>: Girlfriend of 3 years broke up with me in February, met someone 2 weeks afterwards, and is getting married in a month. WTF?