my boyfriend and i were broken up?

my boyfriend and i were broken up for about eleven weeks. long eleven weeks but he was a heavy drinker and that caused big problems. during those eleven weeks he called me two times a day and let me voice messages. very nice ones. he and i only actually talked two or three times but i missed him very much. i know that he went out and got sloshed two times and i know that he was hanging with his x of 8 years during that time two times, i think in fact he told me about it cause he didn't want me hearing it from anybody else. well we got back together and even though he swore nothing happened between them, im getting a sick feeling in my stomach. she called after we got back together and he told her and she hasn't called since, not even on christmas which i find off. it really bothers me and i want him to tell me the truth by the way he quit drinking. we

ve been back together since oct. hes doing good. please help me. i just want the truth.