As for our flirtatious friendship, my fiance is fine with it because he knows it’s harmless and nothing would happen [we have a very open, honest relationship] he’s more concerned my friend will cross the line. As for his girlfriend, she won’t say, because she bottles up how she feels until she explodes. When that happens, she waits until I’m alone [example, I go into the stock room at work and she follows me] then she’ll corner me and hound me until I’m crying because “see, you say you’re sorry, but I don’t think you really are.” Though I have noticed when it’s a little too intense, she jumps between us, gives me a hug [she almost never hugged me before they started dating] then cuddles up to him [and half the time he pulls away from her] Example, this one time we went two weeks without seeing each other [the longest we’ve gone in over a year] when he came into my apartment he raced over and held me for at least a solid minute if not two. After a while, I asked if he was okay, he said no, when I asked what I could do he replied “just hold me.” so I did. It wasn’t until, as I said, a minute later at least, I realized and told him his girlfriend and my fiance are in the room and he let go. [my fiance said it was fine, his girlfriend didn’t say anything] when they were leaving he slipped his arm around my waist and was giving me a side hug while we chatting in the doorway. His girlfriend was standing across from me and I could see her squirming and she proclaimed, “I want to hug Neko too!” then tackle-hugged me really quicky, turned and quickly hugged my fiance [who she has said repeatedly she hates] then grabbed her boyfriends arm and drags him outside.

This means his girlfriend hates how close you two are, and I cannot at all blame her for that. It really is something most people would find inappropriate and your fiance is a very, very trusting man that I think you should hold onto.  Your friend is very much disrespecting his girlfriend by doing this when she clearly is uncomfortable with it. SHE is his girlfriend and you can see he’s not treating her very well. Red flag.