Been married for 20 years and we have 2 DC age 13 and 16. DH and MIL have never had a loving relationship and DH has visited her/ kept in touch more from a sense of duty rather than anything else. However it's now become apparent that unless DH makes an effort to ring his mum they will possibly never talk again as she never, ever rings here or makes any other form of contact. DH has experimented with this and left it months before ringing MIL just to see, but he always buckles in the end and rings her. When they do speak she rarely asks about him or asks after our DC. AIBU to be curious as to how a mother could be so disinterested in her own DC and GC?