I'm pretty sure it's just him venting.
I mean, I don't know the guy of course, but we all say a lot of things out of anger that we don't really mean.
oh I know, I posted earlier about my wife trying to demean me in public because a mexican chick was trying to flirt, even though I did nothing wrong... I dropped a couple F bombs in front of my 15 month old son because she made me so angry.... basically trying to make me look stupid in front of our friends because she thought I was flirting... something she never would have done had it been in private or away from people we knew... you know how catty women get when they think another woman has your eye.
anyway, I had some choice words about trust and being married and if I wanted to fuck another chick id hand her divorce papers, and if she ever tried to disrespect me like that again she'd find herself walking, without a home to come back to.
needles to say we both wound up apologizing and talking it out later.... but there is no doubt that there are times women need to be checked... had I let that go, she would start doing it more as shed see I would let het... just like every other woman ive ever known.