<human>: My boyfriend and I are both students in college. I've known him for about a year, and we've had a pretty smooth couple of months of dating. I'm cautious due to the age difference, but he's a great guy and I really like him. 

I've always known he had a few crappy, long-ish relationships where he'd been cheated on, and he had some emotional baggage due to it. I'd assumed they were around 1-2 years long, and it seems like he's moved on from them without any lingering feelings. However, last night, he finally told me that he'd been married for several years, and got divorced ~2 years ago.

It shouldn't be a big deal, because marriages are common even for younger people and I guess I should have at least considered the possibility. But I'm actually pretty unsettled by this and I'm not sure why. I do think it's possible due to a combination of:

* The fact that he hid it for so long.
* Marriage is something I'm waiting for until at least my late 20s. His marriage only underlines the age difference. I mean, I'm supported by my parents and still am pretty dependent on them. A few years ago, he was forming his new family. 
* I'm jealous or insecure. It's really hard because I'd like to think I have a healthy amount of self-confidence, and I rarely feel jealous. I guess I've been lucky in having baggage-free, drama-free relationships that have ended mutually up to this point, so this is a bit of a foreign feeling. 

Not only that, but I'm his first girlfriend since his divorce. I guess it's just adding pressure because I truly want him to have a good relationship that doesn't end with either person being too hurt. 

It's hard because I feel like I shouldn't be so bothered by this. If anything, I feel guilty for being bothered about it. Moreover, when I think about it, I probably wouldn't have started dating him in the first place had I known he'd been married. Reddit, am I being irrational?

Can you condense the text into a few key points?
<bot>: Boyfriend just told me he used to be married and I'm a bit freaked out, possibly due to jealousy.