Need some advice, I've name changed for this.
So basically, DH has never had much contact with his Dad's side of the family. FIL comes from a pretty wealthy background and MIL not at all. They met and married young, and when they got together FIL's parents didn't approve, and threatened to disown him. FIL was angry with this and decided he would disown them instead - I don't think there was any 'legal' stuff to this, he stopped speaking to them, moved away and lived his own life with MIL.
DH isn't sure how much FIL's parents attempted to contact him over the years, and had some contact with his siblings but not how much. FIL is pretty closed/reserved person and they don't really talk about emotional things in their family. One of DHs cousins found him and his sister on social media when they were younger (unusual surname) - turned out cousin was in the same city for university as DH so they met a few times and are still in touch on social media but not close. FIL was/is not happy about this.
Anyway - fast forward to now, DH cousin has messaged to say that GFIL is dying and his mum (so FIL sister, DHs aunt) wants to contact FIL. FIL and MIL now live abroad so I guess any details she had to contact them before don't work anymore.
DH wants to ignore this basically. Whereas I just find it so sad. My family is the total opposite really, big and close, despite some of us living far away from the main group. I'm also not British so concept of going 'no-contact' is very alien to me, especially for something like not approving of your girlfriend. I know from being on here that lots of people go no contact with their families for very good reasons like abuse, but I just can't get my head around this.
I think DH should tell FIL or at least MIL? DH says why would it be any different now and that his Dad would just be annoyed that he was still in touch with cousin. I just find it so sad and cold and feel a bit emotional about it all and I can tell DH thinks I'm being ridiculous. What would you do?