Please Give Advice to Commint

I have been married for 2 months now my hubby is a good man. But what bothers me is that he is always looking for me too mess up. For me to cheat on him. He always looks through my phone to see who I have called and if there is a number inthere he doesn't recognize oh man watch out cause then he will ask you a hundered and one questions. But here is the real kicker. He is so quick into assum that I am doing something that he forgets to cheeck himself. He still has his ex girlfriends number save in his phone and they still talk from time to time. I'm not shure how to approch this with out sounding like a tottal !**@!. Please give advice