Hi,
So I was going to put this in AIBU, but I know I'm not really. Who wouldn't be upset in this situation?
Bit of background, always had a bit of a tricky relationship with my dad growing up. He was always physically there, but emotionally quite distant and I resented that. He never did anything separately with me, never really spoke to me and when he did, it felt awkward and uncomfortable. Holidays and Christmases were slightly better, but general day to day life - I might as well have been invisible.
I always felt/feel loved, so have tried to tell myself that that's all that matters, but the older I get, the more it hurts and I don't think it's quite that simple anymore.
He never calls me. If I call, he puts me straight on to my mum, once he's gone through the pleasantries in record time. Honestly, it feels like as long as he knows I'm alive, that's enough.
I've mentioned this to my mum a couple of times recently and said that it just feels like he's not interested in me at all and she just agreed. I was genuinely shocked. I thought she'd at least try to reassure me, even if it wasn't 100% true, but to actually hear her say that no, he isn't really interested in me, bloody hurt!
He does have a history of depression which I have really tried to help him with after years - decades of denial. I also suffer with depression and anxiety,
so can see it coming a mile off.
He was poorly recently and I was calling every day to see how he was, but found myself just asking through my mum. He doesn't want to talk to me. It's that simple.
I do take into account the depression, but he talks to other people. He shows interest and can engage perfectly well. Even my abusive ex...who he took for breakfast 
Because of his depression and because he seems to be in a good place right now, I don't want to rock the boat and bring him back down, by bringing it up with him.
He has so much anger in him. An alarming amount and whenever I've had a rant to my mum about this, I can tell she's told him because the next time I see him, he just glares at me and there is a genuine look of hatred.
I don't know what to do. Can I do anything?
TIA