We had been dating 6 months. He recently told me he's been messing around for the past month. Said he's sorry cause he know how much I care about him and I don't deserve it. One of his reasons was we don't have enough alone time (which is true). What can I do to get him back?

Like that's an excuse for cheating, not enough time together?? B*** S***!!

LOL... are you desperate? You believe that and it's a good enough reason for him to cheat? Come on now, have some self respect.

Tell him that he can cheat on you anytime you ignore him or don't have time and you will not care.