What is think is going on with Bobert's friend is this:

He married a beautiful and sexy woman in a hurry after a great loss. She is a dependent and spoiled material girl who doesn't know herself and thus is not able to amuse herself, feel content with her life, or relate to her man like a grown up woman. He is bored with her, and very involved with his own interests which do not mesh with hers nor include her in any meaningful way and which she can not share because of her immaturity. She thus depends on his attention to make her feel alive and worthwhile. His attention is flagging and things are going rather poorly in this marriage. Such incompatibiility is always rather sad, but these two would be happier with different mates, I'm afraid and if they stay together, the union will be fraught with discontent.