Lack of affection and loving attitude - it is too late work on this
Try reading the book The Five Love Languages by Chapman. It discusses how to speak your partner's Love Languages". And even though you have to be careful not to pressure your wife, there are ways to still speak their love language. (For instance - my ex's love language is quality time. When we were reconciling, I would be careful to drop everything I was doing and pay complete attention to him when he was talking to me - no more multi-tasking. If your wife's love language is, say, Words of Affirmation, you might get farther by paying her an occasional compliment than by giving her things.
