@Rangetrout it is fine if you don't feel bad for her, a lot of people seem to hate her based on her lack of attention and affection towards makoto, which is understandable. A lot of commentators like to point out that makoto has been suffering for YEARS etc., I don't know where in the manga it was mentioned how many years they were married, or when they stopped being intimate, or even how long it has been since their communication became so bad. Please do remind me if it was mentioned somewhere, I know in Michis case it was specified that they hadn't had sex in two years.
BUT, there is one thing I would like to point out, makoto also choose to marry kaeda knowing that she wasn't really the ideal housewife material. She obviously couldn't cook, and was very career motivated from the start, which he says drew him towards her. She clearly became more and more busy with work as she got promoted and her responsibilities increased, and so they started getting less intimate. But acting like Kaeda forced makoto to do all the chores etc., when he chose her knowing she wasn't very skilled at it to begin with isn't really logical. If I marry a man who clearly knows next to nothing about doing chores, and never cooks, and I gladly seem to be taking on the responsibility of doing all those things, I don't think there are many men who would mind or step up to help of their own will. I do suspect that people are extra symphatetic towards makoto because he is a man performing untraditional tasks at home. Michi clearly also does most of the cooking, cleaning and other chores, but no one points this out as her being You-chans maid and the like as they do with kaeda and makotos relationship. When it comes to people mostly focus on the lack of intimacy, including michi. But in kaeda and makotos relationship it seems to piss people of more that she doesn't do all the chores. Just saying.
Also, the key word here is "divorce", If you are so unsatisfied with your partner, you need to divorce, two wrongs don't make a right. I have seen many people trying to blame their partner for their infidelity, but that is wrong, and those who think this way should not be in a relationship.