As long as there is five times as much positive feeling and interaction between husband and wife as there is negative, the marriage was likely to be stable over time. In contrast, those couples who were heading for divorce were doing far too little on the positive side to compensate for the growing negativity between them.
One of my favorite scenes in Friends deals with similar issue (it only starts at 5'00 in the movie below). The scene shows very interesting approach towards conflicts' avoidance in a relationship. I am not saying that I agree with it, but I do have to agree that it works very well (at least for me):
Anyway, I just wanted to let you know that I am incredibly happy and I want you to be happy with me :)