Can my dnd 5e character have another pc as his familai

I have a player character who is a genie pact of blade warlock, he may get married to another pc, his vessel is a ring,i want the other pc to wear his vessel as their ring, and become his familiar, my idea is to limit the attack I can give my familiar to a single melee attack This would actually limit me more than anything, and in a party, 5 people and a familiar, is the same strength as 5 people, one of whom is a familiar Thoughts?