DEAR ANNIE: I’ve been in a relationship for three years with “Maddy,” a wonderful woman who has only one child, “Joseph,” a 40-year-old who is a total mama’s boy (putting it lightly). Joseph refuses to have anything to do with me. He has never once come to visit us at our home. Maddy goes to see him every year and usually stays a month. This year, she’s planning to stay six weeks. I’d love to go with her, but I’m not allowed because Joseph doesn’t want me in his house. So, I stay home each time. He shows me no respect or even interest. He doesn’t seem to care at all how either of us is doing, …