OP, AF and animation do have some valid points in what they are both saying.
My DP has a few female friends,this does not bother me.
IME a few months back, one female friend of my DP's crossed so many boundaries this nearly split DP and I up, she messaged him on FB, texted him with her problems and confided in him.
My DP is very niave and tbh never sees the MAJOR RED FLAG
She flirted with him, said the most inappropriate things and at times he responded in the same way. She was extremely inmmature and a PITA.
At first I ignored it but as it was becoming more so on a daily basis it started to piss me off, DP called it banter and a laugh. I told DP that it is not clever for either parties to flirt, as time went on it got worse...this caused major arguments between us.
DP one day told me that she confided in him and told him not to tell her brother( DP is close friends more so with her brother) that she was now seeing a married man, he said he was extremely shocked by this and didnt know what to say to her. DP and I discussed this without any further arguments and we both agreed that she was to be removed off FB and her phone number off his contact list.
I would never try and control who DP talks to or who is friends with but in this instance he eventually seen her for what she was, a woman that preyed on men who are in committed relationships. She was bad news.
I could see how transparent she was before DP could see this for his own eyes.
Good outcome in the end.
Out of respect for DP I do not have ex's on FB, this is through personal choice, I dont feel it necessary to be in that much contact with them.
OP, if the control is beyond suffocation then this is no good at all, I wish you good luck with whatever you decide. x