This is just coming from my perspective and total speculation, from someone who has had a H who just worked too much over the past few years and who left me wishing he would spend more time with the family, but I think your wife is scared and is trying to "protect" herself. She wants to believe you, but she isn't sure she can. She is going into defense mode to keep from getting hurt.
That is just my take.
Just keep working on being that man you want to be and making those positive changes. Actions speak louder than words.
