Hubs doesn’t want to have sex

My husband and I TTC for 4 years with one miscarriage. For the last two years, we decided we’d stop actively trying. No scheduling, no testing, no counting days. But we never have sex anymore and I am dying here; I feel like the man in the relationship! Did he need a schedule for sex? It just seemed so mechanical to schedule something so intimate and I want to enjoy it! I know he’s attracted to me- he grabs me and kisses me and touches me in other ways. and we have a fun relationship with very good communication. I just can’t understand why he doesn’t want to have sex!