I would give Rex a break until you do talk to him. It could be he and your mother talked about how much more could be afforded, how often Rex could see you, etc. and your mother's "reporting" is to blame. It could be Rex wouldn't mind seeing you, it's your mother not affording it and meaning something different by "doesn't want" to see you. You know how playing telegraph as a child ended up with the last person getting a distorted message. Tell that horse Rex (you want it from the "horse's mouth" :-) that he has to tell you what he said and to tell your mother to NOT tell you before he talks to you!