Guys, why would you suddenly ghost a close friend after reconnecting?

Years ago, a coworker and I became really good friends. We went on a couple of dates, but nothing serious came of it, and we eventually drifted apart. There was some awkwardness, but no major fight.

A few years later, I reached out because I genuinely wanted to reconnect as friends. By that point, I had no romantic interest at all, and I think I made that pretty clear.

He was going through a very difficult period mentally, so I spent a lot of time supporting him. We talked often, he opened up to me about personal things, and he even told me I had come into his life when he needed it most. I honestly thought we had rebuilt a really good friendship.

Later, he offered to help me learn something he’s experienced in and said he’d message me when he got back home. He never did. Two months went by, even though he was active on social media and posting status updates.

Eventually, I sent a very simple message: “You disappeared. How have you been? Everything okay?”

He never replied. It’s now been over two weeks.
I’m genuinely confused because this doesn’t match the person I thought I knew. I don’t mind if someone doesn’t want to be friends anymore, but completely ignoring a friendly check-in after everything feels strange.

If you were in his position, what would most likely explain this behavior? Is there something obvious I might be missing?

Guys, why would you suddenly ghost a close friend after reconnecting?
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