question about call today- being the BUOY!

The first caller was talking about being the buoy for her husband….question came to my mind that what would be her motivation to buoy her husband….so he feels better and more positive and so she can feel better? Do we want to do actions that at their root have a motive to change somebody else in some way? Can she be the buoy for herself to feel good and positive about the world and not worry about buoying up someone else? He’s going to be him no matter what so would her buoy energies for him be a waste? Thank you!!