Chanel's Questions (2)

So the uke is in love with a straight man but that man ends up getting married (I think!) so the uke decides to move on. One thing leads to another and he ends up having sex with a boss (can't remember how). Now this sounds like every other yaoi manga on here but this one really stood out to me for the amount of angst that suddenly happened. You see the uke slowly fall in with the seme as he uses all his charms, money and sex to woo him. Then the seme starts ignoring his calls and treating him differently. The uke goes to his house and sees him with another man! The uke realizes he was being played the whole time! Heartbroken, the uke transfers to another company and the seme realizes he fell in love with the uke but its too late. Some time ha passed and the uke is doing better but the seme is rkkted... and that's when I somehow lost the manga. >_< I can't even remember the name so p lb ease help, it was a really good read!

Hello everyone, I once read a really good (and smutty) manga on here before I made an account so I didn't it to any list. But now I've been trying to find it anywhere and I just can't! It's a story about a man who has to marry another man (a foreigner) to save his father's company. They strike up some kind of deal (I think it went like this: If you don't want to have sex with me by the end of the month you don't have to marry me?) and then it just turns straight filthy. Everyday they do foreplay until the uke gives in and wants sex so they end up together. But it turns out the seme was actually in love with him because they meet when they were younger, and the seme also has a really huge penis I believe. It had some kind of obscene name but I thought it was hilarious, and of course I can't remember it. It came out sometime in 2016.
Well, I hope this is enough information. Can you guys help me out?