Should I tell my boyfriend all about my past?

Okay so I’ve known my current boyfriend my whole life, right now we’ve been together for one year and I’ve never been happier in my entire life! We’re 21–22 right now and are already looking forward to building a life together :) We’re really happy together!

But I was wondering about how much I should tell him about my past… we both know about each other’s exes, we only each have one. But here’s what I feel guilty about sometimes: When I was like 18 or 19 (I live in Western Europe) I went to North Africa on a vacation (for the first time in my life by plane). At the hotel there, I met a guy back then and we kind of hit it off. After I returned home, we kept in contact for some months. I also went back there all by myself for one week and slept over at his house (another bed since it’s a muslim country and his parents were kinda strict). But I don’t consider him as an ex since we never did anything on a romantic level, we didn’t kiss, didn’t sleep together, we were more like friends, although this guy was clearly in love with me. So for me he’s not an ex, it happened a few years before my boyfriend was my boyfriend, so should I tell him or not? Sometimes I feel guilty about it… But then on the other hand I feel weird just randomly bringing it up, if he would ask something in that area I would definitely be honest about it. But when I talk about my one ex who really is my ex he seems to kinda quickly block off the conversation and not want to hear too much about it.