please help

My boyfriend of a year just asked for a break. So we're on a break. But I feel it will turn into a break up which is heart breaking. The issue is that he's never been in love, has never felt the deep passion that a lot of ppl feel (and that I feel for him), but because he's never felt it, he looks at every other female wondering if he might feel that passion with one of them, despite not aging it felt in any other relationship, ours included. Here's the bonus: he suffers from depression and is on antidepressants, which are known to suppress passion and dull the feelings, so I suggested that he seek help from his therapist about the issue and consider that his meds are interfering with his feelings, or lack thereof. Should I bother holding on? I know how I feel about him, and if it is the meds and he calls me back at the of the break wanting to pursue the relationship, should I bother knowing what I know about him looking around for hope in others?