The Best Man (Wilde's #1)
L.A. Witt

Reasoning that the only way to get over one man is to get under another, Jon heads for a local club to get drunk and laid. Bartender Liam Sable is more than willing to help with both.
Their one night stand turns into a rebound fling which enables Jon to move on. Craig, however, is having second thoughts about the break-up. While inconvenient and annoying, Craig’s antics are nothing compared to the danger posed to Jon and Liam's relationship by another, more sinister threat...