Blink

Spoiler alert - Andy and Carlos don't meet again for the second time until 75% through the story. Until then there is a lot of soul-searching, flashbacks and what-ifs, and discussions of what it means to be HIV-positive in the 21st century. I skimmed through the book to get to the romance, which was too little, too late. YMMV if you are more interested in Andy and Carlos' separate emotional journeys than I was.