I've been in a relationship with a girl for three years. Sometimes she comes to visit me. We go out, make love. She's great, but she doesn't want to build a relationship with me. She has four children. I'm 43 years old, I don't have children and I won't have any. I bring gifts, groceries, the father of the children is somewhere and as if not. Now she has not communicated with me for a week. She says she is tired and wants to be alone so that no one writes or calls. I don't understand, does she have someone? Or she is really tired, because the smallest child is 1.5 years old.