What is the reason a husband does not feel aroused or pleasured with his wife, despite not having sexual problems, yet felt pleasure when watching pornography and practicing masturbation before marriage? And is it advisable to marry another in this situation?

You are still at the beginning of your marital life, so do not rush into making any fateful decision. Perhaps what you are complaining about is due to your previous practice of masturbation and watching forbidden films, which affected your enjoyment of lawful pleasure. You need a clear mind, frequent seeking of forgiveness, and to forget the forbidden pleasure. What you are feeling might be the devil beautifying falsehood to make you turn away from the lawful. Frequently seek refuge with Allah from the accursed devil and remember Allah. You may need to be honest with your wife to solve the problem.