Edan (Salvation Kings MC #5.5)
Ana Night

Edan knows falling for his best friend's closeted brother is a bad idea. Yet that doesn't stop him from doing exactly that. But keeping their relationship a secret takes a toll on him and Tommy being deployed half the time doesn't help either. Seeing his best friend fall in love and make a home with his boyfriend makes him realize he wants more than Tommy can give him and it tears them apart.
Then Tommy retires from the Army and while Edan is unsure of Tommy's intentions, there's only one thing Tommy really wants: Edan. He just has to prove it to him. He gets a chance to do just that when he's invited to Edan's family ranch in Colorado and he won't let a little gunfire or a few angry cowboys get in his way. But is it enough to convince Edan he's all in this time?
Edan belongs to the Salvation Kings MC series, but the MCs are not from the motorcycle club. It can be read after Hawk, Salvation Kings MC book 3, though it is set after Juno, Salvation Kings MC book 5.