Should I worry about him cheating?

My husband has recently started working at a resort a few months ago, and I am concerned. Apparently, almost everyone who works here eventually cheats on their significant other. I've never worried about my husband being unfaithful, but he has started talking about some of the ladies he works with and how he jokes around with them. He is being very flirty, and I wouldn't be concerned except that we have been going through a rough spot lately. What's more, after having our first child, he had started looking at some less than wholesome things on the internet, and when I found out about it I confronted him not letting on that I hacked onto his account and saw exactly what he was watching. He lied to my face about it and it turned out it had been going on for several months. That was a couple years ago and that has all been taken care of, but I can't shake how easily and well he lied to me. If I hadn't already known the truth, I would have believed him. Is this crazy? He talks about wanting to buy expensive cologne so the ladies will make comments about how good he smells. He was actually upset when he found out some of the other guys had guests pulling them into their rooms, and he was practically strutting when a guest tried to get him to go to her room. I don't know...can I hear from some guys...what are the chances that he will be unfaithful? Is he just wanting the flattery of attention or should I be concerned?