My daughter-in-law enlisted my aid in wooing my son (I was sympathetic but remained neutral), and after marrying him has kept an extraordinarily tight reign on him. This precludes any normal relationship I might have been able to have with both of them. We've had many get-togethers but always, and only, on her terms. I've not seen them for four months (once it was three years), and their home is less than an hour's drive from mine. If he is in my area, she does not allow him to visit unless she is with him. I realize she can control him only if he lets her, but there are times when he has hugged me and said, "I'm sorry" without saying why. I can only guess.
