3. Sometimes they want to be left alone
Just like girls, guys need some alone time as well. In order to have a happy relationship, you have to give him his space. If he wants to be left alone, leave him be and let him know that you are there for him. Many people need solitude and time to recharge their batteries. Wanting to be alone doesn’t mean he is tired of you, it just means that he needs some time off for himself.