<human>: So I've been with my current SO for 9 months and it's been great for the most part. She's my first ever romantic relationship and I'm something like her 6th/7th and she came very close to marrying her ex (who she was with for 7 years) up until she realized he was dumb as a bag of hammers.

Every now and then I'll have this morbid curiosity, this urge to look up old facebook posts that mention her ex and how much they loved each other.  I'll see how happy she used to be with another guy who I build up in my mind as being better than me. Why does my goddamn brain make me want to torture myself like this? Can anyone relate to this shit-head thought process? I know I'm just comparing myself to her ex because I'm insecure - part of that stemming from this being my first relationship and not feeling "man" enough and part of it coming from not being able to yet reach that level of intimacy that they must've shared as they were together for so long and almost married each other. I guess it's just jealousy that he got to have so much of her for so long, and some anger that she couldn't see that he was a fuckup sooner in the relationship.

But then my logical brain activates and says: c'mon, man, she left him for a reason: because he was a loser. And she's with me because she loves me more than him. That's the fucking clear-cut truth of the matter. But for some reason my shitty brain wants to fuck everything up and look at her past when she was with someone else and it just fucks everything up. Goddammit. I have absolutely no reason to think she still has feelings for him at all. Why do I torture myself like this?

I realize I sound like a whiny teenager, but can anyone relate? I know the cure is to remind myself that she's with me and not him for a reason, but it's so easy to get caught up in the past. Fuck.

Can you provide a brief overview of the text?
<bot>: My shit-head brain keeps digging up posts from her past relationship with her fiance even though I have no reason to doubt her commitment to me.