He’s not realising the pain he’s put you through
It's not even just emotional pain though, is it?
If the op hadn't found out she had clamydia (which can have mild to no symptoms), she could have developed pelvic inflammatory disease and even been caused infertility.
If she'd been pregnant at the time of infection with any std, thar could raise the chance of miscarriage and even fetal abnormalities.
If he's had unprotected or even protected sex with women (or men) who've given him clamydia & gonorrehea; he's just as likely to get infected with and passing on hpv; thereby raising the chances of op getting a high risk strain of hpv, and therefore raising the risk of cervical abnormalities.
I just hope the op got the HPV vaccine. And I hope she has regular smear/HPV tests
He's a walking, talking health risk. ... As well as a cheater.
I'm sure he could imagine op's pain very well indeed if he found out she cheated on him. He knew she never would though, while he did what he liked behind her back. Double standards galore.
Anyway, does he really not understand her pain or does he want it all just to blow over and go away, for his convenience?
He's hoping she's too invested with the long marriage and kids, esp in their culture, that she'll stay. He thinks that by acting like it's nothing/minimal and acting normal he can make her go along with it.
This is a guy who seriously thought he could tell his wife he got clamydia from cups and cigarettes at work.
He's an idiot who's projecting his idiocy onto his wife.
(And personally I don't think he got those stds from a blow job, and it's highly unlikely he'd get them from sex with a condom; so he's such an idiot he shags around without condoms and is a walking std factory).