Dear /k, need some advise from you guys. Serious answers needed, but knowing this forum, wanna troll also go ahead lah

My friend recently confided in me he's having an affair with a woman he known from tinder (he's married and she knows he's married). Now being a married guy, he can't meet her every day, and the arrangement is to meet up at least once or twice a week.

This is what he told ma la ok... he likes juicy girls and she's absolutely wet... like gushing wet. She's like prim and proper on the outside, but is WILD in the bed. Dildos, vibrators... total sex maniac    He told me the stuff they did, like she likes him to pancut inside (she takes the pill) coz she likes the feeling of him cumming inside her. She cums easily and 1 session they can play for like, 2 hours, play raw and dildos and vibrators, and she'd cum more than 10x until semi passed out. She's clean and only interested to have sex with him deswai my friend dares to play raw. Dammit I heard oso jelly and keras oledi

It was supposed to be a guy's wildest dream come true... but problem is, she got serious and fell in love with him even though he's married. She said sex with him is so unbelievable until she's addicted to him. She's started taking him out for outings with her family, and treated the relationship like legit bf/gf instead of secret affair, which is stressing him out. Secret affair is supposed to be secret and he can't afford to be accidentally seen by his wife or family members. And he's starting to get phobia having sex with her. I dunno why la but I guess its a case of having too much of a good thing is tiring and stressful? She's like if can, wanna screw each other's brains out every single day 24/7/365 

I did asked him if he wants to consider breaking off, and he did thought of it but she's so crazy over him, he sked she might go mental if they breakup. Besides, the sex is too godly awesome (if it can be less frequent). So /k, what else can I advise him?

Sorry no pic coz p&c cannot simply post ya. But he showed me her pic, and she looks ok la, I guess around 6/10 standard.

inb4:
siberian winter story
my friend is definitely NOT ts
kasi intro to me