Boyfriend wants to hang out with former FWB?

Anonymous
My boyfriend recently asked me if it was okay with me if he were to hang out with his former friends with benefits. We have had this conversation before and I told him that he knows already where I stand on the subject. He continued on telling me this huge sob-story about her life and couldn't understand why girls judge others girls so much about relationships. I told him that the only reason I was judging is because I am just not comfortable with this girl being around my boyfriend o much and that if he were to go out with her, I would be very upset.

My question is, am I right to feel upset? I told him that I am not comfortable with this, however, I would not "ban" him from seeing people . I'm just not too sure what to do about this situation right now.Help/!
Updates
+1 y
it may important to add that she recently started dating someone...
Boyfriend wants to hang out with former FWB?
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