Maybe he feels that they will ask him to borrow money and does not want this pressure. Maybe something happened to him or some other reason. Personally, I think he doesn’t want to lend them money.
In any case, you need to have such friends so as not to stop communicating with them if someone suddenly gets rich or, on the contrary, becomes poor. Such situations clarify relationships well
We have good topic here that might one of possible reasons why he avoided friends -
It’s unlikely that anyone besides you will be happy with your winnings. People are greedy and envious. When someone wins or achieves something, some people start to have a bad attitude to that person. Sometimes they think that that person got all that due cheating or not being fair, some people thing that a winner must share something with them, that this person owes them something. That is why sometimes people limit themselves from such people, because you never know what is on their mind.