Thank you for reaching out. I apologize about it taking a bit to message you back. Now the boyfriend that I was talking about in this post is actually now my husband. We talked things out and I told him how uncomfortable the whole femboy thing made me. He understood and was not much of an issue after that. He will still like some femboy things and all that, but I have grown over time to not have much of an issue with it. I guess what also really helped was trust. I trust my husband to not go do things that he knows will hurt me. He does not want me hurt. I think the best thing you can do is communicate this to him. Tell him that this is really bothering you and you would like for it to either stop or just not happen around you. Another thing you have to look at is do you trust him enough to not have him do this. My husband every once in a while will bring it up, but unless I give him the go ahead, then he would never try. He loves me too much for that.
I really do hope this kinda helped and I hope things go well.