3. Your husband wants to get rid of monotony and routine
Your spouse may be too sick and tired of the daily routine he faces from day to day. Stability is a good thing, but it makes your life too predictable. Your man might be searching for new emotions and adventures. And this does not mean he necessarily needs a new sex partner.
4. Your husband is not yet mature enough for serious stuff
Maturity does not depend on how old you are. Men are teenagers in their hearts even if they are 40 years old. Marriage may not change his true nature and character. It often happens that a man gets married when he is not yet ready for a family life, wife, kids and various responsibilities that all this involves. Trying to find another girl may be his way to learn more about himself.