Help me find a bl manga

Ok so all I remember is that the top used to straight and was married like 2-3 times but all ended up in divorce and the bottom is gay his best friend is in love with top. But when top's last divorce he decided that he won't fall in love with anyone anymore and the bottom supported him. I think some days later when the top was train station a beautiful man helped him (I think he tripped or smth) and he falls in love with that beautiful unknown man and when he tells this to bottom that the top is in love with a man. Hope it makes sense