After all I finished with my bet headed home and was asking myself what could the colleague act that way avoiding his close friends they all gambling together and just because luck shines on him first he decides to create a distance and class. I couldn't actually annex a good reason why anyone should do that.
That's why it's good we all have to be mindful of the kind of friends we keep, because a true friend can never abandon you no matter how rich he gets, but yet try his position best to ensure he support his friends to become successful in life, because there is a parable we always say in our local language
"Na one hand dey wash another" which means the people who you assist today while you are rich, are likely to be the same people that will assist you tomorrow when you are no more financially buoyant. As this thing called Money revolves from one person to another in due time. Hence, we should never neglect people when we are given the opportunity to assist them in times of need.
When someone wins a large amount in gambling he hides it from his friends because everyone knows that it is very easy to earn in gambling without any hard work if one is lucky and that is why if a friend hears that another friend has won a large amount in gambling then that He may ask for money as a loan or for any other reason. Everyone tries to hide this fear. I don't know this more clearly because I have never been in such a situation and my friends have never done anything like that to me.