Most Helpful Guy
I shouldn't be judging or telling someone how their relationship should be but if I see something that feels out of place or harmful, I would step in and give my opinion so they can have an open mind or second opinion about their relationship. If I feel its really successful, I would praise him! Let him and his girlfriend know they are a wonderful couple together! Most of the time, they aren't in need of my advice as they experience the relationship themselves but once in a while, I don't mind giving advice if they ask for it.