Long time lurker here after a bit of advice. DH and I are good friends with another couple who we see regularly - once a month at least for dinners, drinks etc. We see them together and separately. I enjoy their company. My issue is with the female of the couple who is really horrible to her DP. After a few drinks she shouts at him, tells him what he can and can't do, and totally tries to control his behaviour. She pounces on things he says and sulks/ignores him if he displeases her! It makes me feel really uncomfortable and I have wanted to say something about it in the past but she is not the most approachable person. We are having a weekend away with them soon and I am a bit anxious that her behaviour towards her DP will ruin it. Any advice?