This depends on what you seek to gain from this call.
If you feel that someone who had a relationship with you despite the fact that they already had a girlfriend is morally wrong, which it clearly sounds like you do, by all means call him. Why not go further, text him, aim him, email him. In short do everything you can to make this guy realize that cheating can cause serious repercussions. (Note: Mystery Man does not endorse stalking, so don't be too creepy)
On the other hand, if you really want to know why he always shuts you out of his life, please repeatedly read the first sentence of your question until it begins to make some sense.
No. I think that he must have done it for a reason. It takes a lot of clicking to find you on Facebook, click on your profile, scroll down and click the 'remove from friends' button. IMO, of course. Mystery man has a point, though.
let this guy go and move on.
Why are girls so stupid? I mean men have an excuse...having a penis and a brain, but not enough blood to run them at the same time (courtesy of Seinfeld). But really...if dude was cheating on his girl, why the f do you care why he's shutting you out of his life? Be glad to be rid of one more douchebag and move on. And if this comment doesn't resonate with you, I suggest standing on your head until some blood flows into your brain!
my gawd, leave the man alone and find your own man.
Life is short, actually painfully short. Don't waste another minute thinking about this guy, or any other guy in the future who is not worth your time. There are plenty of lovely people out there :-) Good luck!
This sounds similar to my situation, except we were back and forth for a year. i think he removed me because I sent the girl a message. I think she told him I did though I told her to say nothing. i put a "nice" message about him in my status and he has since blocked me.
however, I won't be contacting him.