Momo's Favorite

I need help to find a yaoi manga/book it was a manga at first then it was a book. In the beginning i think the uke was a 1st year high schooler and he started to date a 2nd year then they went on and the seme went to college and some dude kept wanting him to join his club bc his brother was a famous person I'm pretty sure it was Architecture and then he finally joins and then the uke and seme go to the beach and see the dude who wanted the seme to join his club and then the brother of the seme meets the uke and doesn't want them to be together and it doesn't work and then the seme goes to New York bc his brothers ex-girlfriend tht the seme liked was going to surgery I think and he went bc the uke said to go and over there he got hurt and then he came back and they were supero live together but never did... oh!! And they both wore rings like the rings were a symbol of their love and at the beginning the uke thought tht the seme ( before they started to date, I think) loved someone else so he gave his ring to the seme's niece but he didn't know they were related. * sorry for the scenes being all over the place I'm just writing as I remember but I can't really remember everything but I do remember tht it was a sweet story so I'm trying to look for it but I can't remember the name but I want to reread it* please if u know wut I'm talking about please tell me and thank you if you do!! ヾ(❀╹◡╹)ﾉ~(⌒▽⌒) * as u can see idk how to use these emoji like things so sorry if they're not appropriate for this I'm just picking a happy cute one and srry if it offended you* :)