Trusting after an affair

"Dear Housewife,

My husband has been unfaithful in the past but is really trying to make it work with me. I believe he is.
He wants to go with his friends once in a while and I know I shouldn't care.
I tell him to go and want him to, but I am an emotional rollercoster for 2 days before and after. I don't want to be but I am.
I end up crying and he ends up saying he shouldn't have gone.
He is not staying late and calls me several times so I know exactly what is going on. I think he should be able to do things sometimes but I don't know why I get so upset. I cannot control my emotions!!"