A lot of people have trouble keeping up with nearer relations like siblings and parents and grandparents and kids and grandkids. Any time you manage to have a close ongoing relationship with a cousin or an aunt or an uncle, that’s a bonus, rather than something to be expected. I am in occasional touch with one second cousin, but that’s pretty much it. When we see each other at family events, that’s great, but I don’t go out of my way to keep up with my cousins.
He’s a very busy guy, and in his hours off, he’d probably like to spend time with people that he has something in common with and that he can relax with. Spending time with an opinionated ex-Catholic cousin probably doesn’t sound like much of a break to him. Aside from the family tie, what do you have in common?
Aside from that, he may be having health problems, your email could have been lost, and his voice mail and his email are probably extremely challenging to keep up with. (I’m just a housewife, and I’m 12 days behind on my email.)