<human>: Can you give me the gist of the text in a nutshell?

I'm studying abroad this semester and I broke up with my bf of a year about halfway through. Shortly after, this guy and I decided to let our relationship develop as it will, basically see where things went. I was the one that suggested it to him (we'd both noticed the chemistry we had before my breakup) and made it very clear that it was just a casual thing since we'd probably never see each other again after the semester ends.  

I honestly don't really know what to call our relationship, its not just FWB or fuckbuddies, we go out to eat lunch together and hang out with his friends. Neither of us is dating anyone else at the moment either (but we never stated that we're exclusive so we could in theory I guess). 

When we're by ourselves or with a couple of his friends, he's more affectionate (kisses, stroking my back, holding hands etc.) but when we're out in public he's a lot more withdrawn and there tends to be some physical distance between us. All of his friends and mine know that we're having a thing, we're not really being secretive about it at all.

Now, my problem with this right now is that I'm worried about developing some deeper feelings for him. We both know that our lives are headed on very different paths and this thing has always been kind of fling-like in nature. I've thought about an LDR but I don't feel like I'm in a place where I can do a serious relationship (part of why I broke up with the ex and started this fling).

 Is there a way to avoid falling for him without cutting the chord in the relationship? And if not, what can I do to help enjoy the time I get with him and minimize the effects of falling for him?
<bot>: Complex, casual relationship with friend that I'll never see again after the semester ends. How do I avoid catching feels or minimize the effect of feels?