Father describes his son as an adapter, knowing how to work his charm very well. He told me to see what he does when I tell him no. He even asked me why I wanted to be with someone like his son. What is his father trying to tell me?

Another described him as conniving, very nasty and sneaky.

The thing is that I don’t see any of these traits in him and when I discussed these things with my boyfriend he says that I need to trust him and believe in him and not what other people say. Advice on what I should do please. I really love him but these people have known him longer.