Was the grandmother trying to pimp the kid?

I don't think so. She knew he was gay and accepted him. His mother didn't. He would be better off with his grandmother.

I think she was lonely and had lost a son. She wanted companionship and someone to look after her. She understands and accepts the kid the way he is and wanted to validate him and make him happy.
Shame he misunderstood the singer's suit for a dress…

However -
I don't understand the issue about carnival that they kept talking about..