<human>: Here is some background: I (22 F)graduated in May and moved accross the country with my boyfriend at that time. We had been dating for three and a half years when we realized things weren't working out. I had been struggling with depression and we were having compatibility issues. 

Fast forward to now: I am single and back in my hometown, living in my parents house, overall feeling a lot better in regards to the depression (actually, feeling pretty great :D) Quite a few of my high school friends have moved back home after college so I have been having a lot of fun catching up with them.

So, there are three of my guy friends that I am flirting a lot with, one of which is a high school fling so we started fooling around pretty soon after I got back. This one guy in particular is acting strangely when I make plans with other guys even though I have been very honest with him about not wanting a relationship or being exclusive. I just want to spend time with people I like and enjoy myself after such a long and serious relationship. 

My question is are there rules for casually dating multiple people? I think this guy is bothered/jealous that I spend time alone with other guys too. I know he really likes me and wants to be exclusive, and the inequality of feelings is making hanging out with him hard. I would break it off but A. We run in the same group of friends and I am worried about it being more awkward and B. We have this insane attraction to each other, although for me it is just physical and not emotional at all.

Can you condense the text into a few key points?
<bot>: I am okay with casually dating multiple people but one of the guys seems jealous/unhappy that I am with other guys too.