Just Roommance - The Chance Encounters Series, #47

Matt, a reformed player, is still hung up with his ex who is now getting married to another man and tries to get her back. But Simon, his best friend, has a massive crush on Matt and while trying to support Matt hopes that Matt's ex, Ruthie, won't take him back. When Simon's apartment building floods, he has no place to go and moves into Matt's apartment for the time being. But the more time they spend together the more the bond between them shifts into something more leaving Matt torn between choosing his best friend or the girl who got away.