I have a question for men and women?

So recently I went onto mine and my husbands online cell phone account, checking to make sure I hadent gone over on my texting and realized that my husband had been talking to an ex girlfriend. Now from what I see he only calls her when hes drunk but talks to her for over an hour sometimes. So I decided to look back further. Our records allowed me to go back a year and I looked over everything. My question is: is that crazy? is it crazy for me to want to know if I can trust my husband considering what I had already found? crazy that I want to know how honest he Really is with me, even though Ive trusted him completely from day one? After I found the calls to and from his ex I found calls to and from his friends promiscuous ex girlfriend as well. Then when I went over everything, I found calls to and from another one of his ex girlfriends that he lied straight to my face about when the calls took place a year ago. Ive confronted him about these calls and he got really mad and told me that I was crazy, that no sain person would sit and look through all of that just to check up on him. So what do you think? Is that a little crazy or what?