I have been with my dp 12 years and our finances are not merged. The house is 100% mine no mortgage before I met him, and although he buys all the food and does ask to contribute now and again to bills, I am wary because I never want him to have a paper trail that can then be used as evidence to claim for anything to do with my property if anything goes wrong. I have a 5 and 1 year old.
Although he has never said it, his family are extremely important to him and although his Mum passed away before I met him, he did have a obsessionaly close relationship with his brother. He has sisters and a Dad abroad, but the problem is the obsession towards his family was and is a one way street. He has shown by actions not words that he definitely loves them more than me and his children. Or at least until very recently he did.
It has been a long hard slog, but he is slowly realising that his feelings towards his family are not reciprocated. I have had to endure some real hard times, Dark depressive episodes because his brother who lives close by is very selfish and has no family loyalty atol, he took it hard when he was too busy to see him or cancelled plans at the last minute.
We recently travelled abroad to visit his sisters and dad, and they barely spent 1 whole day with us during our 10 day stay, because they were too busy with their own lives.
I think the penny is dropping, I can see his attitude changing, but my goodness it has been tough on me.
Perhaps in time your dp can turn his devotions to you, however if his family feel the same as he does, then that is a whole different thing altogether!