How to I get over this...

I'll just jump right into it, 6 years ago my husband at work started talking to this girl, I know this because he didnt have facebook, I did. I took his phone to log into mine and there one a random user name&password, He had one friend and it's her, mostly him asking her to lunch, flirting asking if a pic she posted was for him etc. I got so mad, told him about it but that time we've been married 4years already, it took along time to get any info out him and everytime I did it was something little different, I also went alittle crazy and msg her and her boyfriend. Her boyfriend called & I told him everything, she was in the back yelling calling me names saying that he's the one who said he liked me. I asked him if he liked her and ofcourse he sayz no.

Anyways up until now he works by at the airport different job, different area but I just cant help but feel some type of way about it and I've been so Insecure but he doesnt help either, he will Purposely talk about all the Male coworkers & dance around the females & it always brings be back to that place like before, I got over it with time but I didnt get over it by knowing the Truth & to top it all off, when talked about it, he sayz it wasnt cheating, it was just something stupid he did.

When that happen I told him if he wanted to work we needed marriage counseling and to work on other things which we did not do. Female coworkers would buy him a coffee etc but he will say a guy did, I know why he does that because of the past I would freak but I'm pass & over all that immature reactions but I do feel like he's up to something by hiding stuff like that when he doesn't need to, I told him that but he says he tries to avoid it all together, we haven't been fighting about the females themselves, we've been fighting because all the unnecessary lies and run around which makes it seems like hes cheating. We cant really talk because it doesnt always go good like yesterday, I dont want to throw away 10 years but I kind of feel like I do. He is a good husband but not a Innocent one either.

Just asking for advice, I dont need any rudeness.