my mom's boyfriend is an extremely generous sweet, kind person; he is also very flamboyant and feminine, enjoys cooking, decorating the house for holidays, and putting homemade bows on all gifts. My mom takes him to everything guy or girl event. He even came to my bridesmaids' dress shopping, which was news to me. My mom has insisted on throwing me a bridal shower regardless of ettiquette. I figured it would be a good time to ask if her BF will be there, to which she replied "yes." I told her that it is a girls only party and she seemed upset and said it would hurt his feelings. Having 1 guy at the shower will change the total dynamic of it all. The thing is, he is a person that will be involved with the cooking, cleaning, entertaining, etc. How do I address this further, without hurting feelings but still getting a ladies only bridal shower?