Nah this shit isn't cute at all. The ML is just a straight up asshole. The fact that he hasn't talked to his wife about his (misguided) feelings for 7 YEARS and acts that way just shows how immature and brainless he is. Listen folks, this is a manga, so it doesn't have to be realistic, but this is a textbook toxic relationship. Don't put up with this shit in your life, it's just unnecessary stress.