There's a male "friend", who until a few weeks ago was in my messages constantly, too much really. We were just friends (afaic) but we shared a lot of things, I trusted him as a really good friend, we'd both been through a similar difficult time. We also did a hobby together.
I don't know what happened, but suddenly he was texting less and his messages were less chatty, factual rather than opening a conversation iyswim. He also stopped coming to the hobby. He hasn't been in touch with others who know him through the hobby either.
As we were so close I tried asking what was wrong and he insisted he was fine, just really busy. He does have a compex personal life, which I have no desire to become embroiled in. So I've left him be and haven't contacted him for weeks.
He's in a chat with other hobby friends and through that I know a monumental (good) life changing thing has happened. I've replied, as everyone else did in the group, "congratulations" , but nothing else.
A few weeks ago, he'd have told me before everyone else and we'd have had a good chat, with me being just as excited for him as he is.
It feels rude, or as if I'm making a point to deliberately not contact him, but if I do, it's entirely possible he'll just send a bland response. There's also a part of me that thinks he really might not be OK.
But, I should leave it?