Right now I am sensing a lot of tension and arguments about finances - something about housing/investments. They are having different opinions about finances. I believe one wants to sell some asset(s) and the other doesn't. There are also a couple of investments on Rain's end that didn't pan out so well - music related so he has incurred some debt because of that.
I see that they are also arguing about parenting. They disagree with some parts of each party's parenting style. When Rain is mad he often likes to leave the house and then drive off and dump her with the kids. She's just like what??? where are you off to now? He won't return home till the next day or a few days later.
Kim Taehee feels a bit exhausted being the one who is primarily looking after the children. She feels that her career has sort of taken a backseat after marriage and that she dedicated a lot of her time and herself to the children. She lost a lot of "time" and sometimes she is envious of her fellow female colleagues who do not have children or who are not married and are still acting a lot. It's not that she isn't acting ; it's just she feels that she isn't so active before in acting and there aren't that many dramas/films that are looking for her compared to before. She also feels that Rain hasn't really pulled his share of parenting these days and that whenever she needs his help with the kids he makes excuses to avoid helping her. She doesn't know what's keeping Rain so busy and feels a bit lost. She doesn't really have an outlet to complain to because she knows people talk.
Rain feels like Taehee is nagging too much these days. She isn't as sweet or gentle as before. He feels like they've gotten boring as a couple and whenever he speaks to her she's always asking questions or telling him to do this or that. He feels like Taehee just talks about the kids and doesn't care so much about him anymore. He still cares about her but he wants to escape from his marriage responsibilities and wants to go back to when they were dating.
Rain these days feels quite stressed out. There seems to be some situation that he cannot solve. I think it's financially related.