4.5 stars for the end of this contemporary M/M romance. 
 Thomas Elkin and his much younger live-in boyfriend, Cooper, are going through relationship growing pains. This is the first committed relationship (with a man) for either of them, and they are both workaholics. Well, Tom starts that way, but he's starting his own architecture firm after a rancorous issue at his previous employ. How that all went down? Good job, Tom! Way to torch the D-bag. Starting over doesn't mean Tom doesn't work--on the contrary, he's just doing it from home, now. 
 Cooper's building his reputation, but he wants more commitment, too. I loved how he didn't ever ride Tom's coattails in their industry. He's "Just Tom" even if all Cooper's colleagues admire the revered Thomas Elkin. Cooper struggles with a handsy client, and Tom's not the possessive type--until Cooper really needs him to be. That part coulda been nipped sooner, though I *almost* understood Tom's reticence to interfere. 
 I've enjoyed this quiet romance from the start, and the sexytimes pick up in the final installment. Also, the feels are much stronger, and I liked that. Tom's so in tune with Cooper, and vice versa, so that was lovely to watch build. And the end is just yummy. Tom finally does everything right! 
 Also, the way their families have accepted their relationship is very believable, and made for excellent resolution.