Ex dating an acquaintance

so its been a year and half since my last relationship. I'm def. over my ex, and considering he tried crawling back on his hands and knees 5 months after we broke up and I turned him down and said it was over for good, I def. moved on faster. The only problem now is that I just found out that he's moved on as well and dating someone else now. Except that that someone is an acquaintance of mine and what I would like to call a "leftover whore" meaning she only takes my leftovers. she's already dated one of my other exes and now she's going for the immediate. I don't know why but it's bothering me like crazy to where I can't even sleep at night! trust me guys, I don't want this guy back, but I can't seem to get over him now going out with this other person. am I just over analyzing or would you be mad to if you were in my shoes? and what do I do to just snap out of it and get over it?!
Ex dating an acquaintance
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