Overall, I liked it. Kept me engaged; however, I do have some nitpicks.
One thing I don't know how to fix, the reason I'm turned off by Real Porn in these games is the actresses are never the same, so when the video was shown of the woman fucking in the club with her face fully visible, I didn't know if that was supposed to be the wife or just a random video sent to him, lol. Apparently, according to context after the fact, it was random, but there's no way to know when it's being watched.
The husband started off really strong. He was confident and good in bed. Then he immediately becomes super clingy and insecure out of nowhere, and eventually goes from giving his wife multiple orgasms to premature ejaculation. I think the story could be better served if the husband becomes more insecure over time instead of literally the 2nd day of gameplay. The wife sure gives him reasons to be, lol. Also, there should be a reason he starts cumming early instead of it just happening out of nowhere, like he gets flashbacks of his wife banging someone else and it causes him to cum or something.
As for not being able to satisfy her, personally, I prefer games where the wife is a slut despite the husband being good in bed. I'm not into the tiny dick / premature ejaculator scenarios. That's just me.
If you're going to do multiple routes, I would like to see one where the MC is confident and still satisfies his wife, but she fucks around anyway. I also prefer a route where the wife is promiscuous and doesn't go for just one guy. I prefer my NTR games where the wife is a slut but doesn't leave her husband, lol.