I'll start by saying that me and DM don't have the greatest relationship but we are cordial and text around once per week (pics of grandson, general info, arranging meet ups), see each other about once per month/ 6 weeks. Very rarely speak on the phone and certainly not just to chat.
When I was 16 I found a very small kitten (5/6 weeks old) in a deep puddle, close to drowning - we lived in the countryside and it was likely a feral cat which had dumped the runt. I hand reared her and we kept her. I contributed to her up keep financially and physically. She was 'my cat as well as a family pet'.
I went to uni and it was decided by me and mum that cat would remain with her. When I moved out after uni I couldn't find a rental which allowed pets, so again mum kept her - she was happy with this, as was my younger sister. When the cat was 10 yo I bought a house and suggested I take the cat, as though mum was happy looking after her she wasn't especially fond of her/ cats. Mum thought it better the car remain with her - I lived in the city, albeit the suburbs, the cat was happy with mum, mum was happy to keep her. All fine. I asked again, 2 years later before getting my own cats. Again, mum preferred she stay at home. I was fine with this, she was well cared for and my mum had grown fond of her.
Anyway, last week the cat was PTS. This wasn't particularly surprising - the cat had been ill for a little while and medication/ trips to the vet hadn't solved this. She was 16. I was for the best.
I found out via Facebook when sister put an 'RIP cat' type post up.
A week later and mum still hasn't called or text. My mum isn't on Facebook. AIBU that a text or call would have been nice/ appropriate/ polite?