My fiancé sees nothing wrong with messaging other females

My fiancé doesn’t see anything wrong with messaging other females. The conversations are not sexual or flirtatious. They are friendly and supportive messages.

One female friend reach out out to him on Facebook messenger (mind you she was in a relationship at the time with my fiancés friend.) asking him how our baby was and starting a conversation with him. I’m not a fan of this girl for other reasons. I just don’t understand why she had to reach out to him. They aren’t that close she could have asked her boyfriend to ask him.

My fiancé KNOWING HOW THIS ALL MAKES ME FEEL tells me a couple of weeks ago he messaged a coworker he’s worked with for a couple of months who’s dating his friend, asking her if his friend changed his number because he hasn’t been able to reach him for a while. I found this odd because he could of just directly messaged his friend on Facebook or other male coworkers that worked with him.

Anyways I stand where I stand with how off putting this makes me feel. He’s trying to play this off like I’m being dramatic and it’s no big deal. We are looking into couples counseling. I’m not going to tell him who to talk to but I’m also no t going to sit here and feel invalidated about things I would NEVER do to him. Especially if he expresses how uncomfortable it makes him feel. We are not boyfriend and girlfriend we are engaged. I’m not a side chick come on now

UPDATE

Thank you for the input ladies. I ended up apologizing to him. I didn’t realize from an outsider perspective I was being abusive it toxic. That wasn’t my intention at all. Thank you for giving me a reality check.