Sort of a "chicken and egg" thing, no? If you consciously seek the good feeling for doing a thing, then it somehow negates the purported, loving motivation. But if you do a "loving" thing with no thought of the practically guaranteed, good feeling you are bound to get; you are allowed to accept that as a gratuity. I'm sorry, if you were to apply the same principles to, say, waiting tables, then it would be considered wrong to give good service if you already felt assured of a nice tip. Well, I'm not sure I've given the best example, but you can see what I'm driving at; I hope.

Personally, I prefer to do loving things just because they need doing - or at least, that's the way I feel about them.