Sexcapades: Belly button virginity

OK now I'm nobody to judge or (usually) shy away from fetishes. But this experience was probably one of the weirdest. 
 
So, I'm living overseas, and it was a second date. There is a bit of a language barrier as neither of us speak either language well. But the vibes are still good. Me and bro decide to go back to my apartment. I can tell he's a bit nervous but don't really think much of it. We're just cuddling on my bed and talking. I can tell he wants to go for the kiss but doesn't do anything, so I make the move instead. All good. Everything is normal.  

Things are escalating as usual. Then he starts to kiss his way down towards my pants... but stops at my stomach. Now it's kind of an unspoken rule that every girl hates her stomach, so I am surprised but thought maybe he's trying to make me comfortable.  

Then I feel it and squeal. Bro fuckin sticks his whole ass tongue in my belly button. Worst feeling in the world. Especially unprompted. He asks if I'm okay and I awkwardly just try to encourage him to take my pants off, or even his pants. Anything other than what just happened. He then informs me he refuses to take his pants off because he's embarrassed from jigging in them about five times [Editor's note: WTF is jigging?].  

It has been like half an hour... max, of making out and being a bit touchy. Okay, all good, a lil superstitious but fine. I say it's fine we carry on. He goes BACK to my stomach. I be upfront. Tell him I'm not enjoying it. We move on, fuck. It was probably one of the worst experiences of my life. I figure he just hasn't had sex in a while as his ex was six years ago, and he hadn't done anything since then. 
 
You'd think this would be end of story. 
 
I then am informed a week later that he has a stomach and belly button fetish AND that was him losing his virginity at the age of 33. 
 
I am 22. 

A. I didn't know he was that old. 
B. I would have probably guided him the way if I had known the circumstances. 
And C. Why did he not think to inform me of said fetish. 
 
I think I know why he hadn't lost is V card until now.