What do you think?

It's a long and complicated story,but all you need to know that me and this guy had crazy chemistry,we have a history.
First i added him on fb in 2024 october,he accepted my request...we exchanged messages.approx. 6 months later his marriage ended.
I am pretty sure he muted me lol
Unfollowed him for a hot sec,but i wanted to ask him something important.
And this forced me to send a request again...he accepted it,again.
I was wondering why he is okay with being friends on fb but refuse to talk...could it be because he is not ready to open up?
Btw we've mutual co-workers still waiting for him to accept their request,some for years