I've been married for 4 years and we have two beautiful boys aged 2 and a half and 4 and a half. My problem is that I sometimes fantasise about being single and often think about other women. I don't know whether this is normal fantasy or whether I am seriously falling out of love. I've been under a lot of stress and pressure lately and have been very focused on study, which has made my wife feel isolated and she told me that it we might as well be apart if we're going to be like that. I told her we just needed a holiday as we haven't had one for over 5 years (nor a honeymoon) and we have just been under a lot of stress which is normal. I feel like I fall into negative thoughts about her whenever she is rude to me or says little things that make me feel criticised or looked down on. Her parents divorced and I wonder if she expects that in her life. My parents stayed married and I would hate to break up and have that influence on my children.