DH and I both need to get a night guard. He broke his tooth last month and I have pain in my upper jaw from clenching my teeth when I sleep. The dentist told me to get an over the counter one until she can get approval for a custom made one - I have sensitive gag reflex so I had to trim the over the counter one a lot to make it fit fine. But it's OK.
DH and I joke that we're going to have matching night guard cases on the bed side tables, and if either of us want's to have sex, we'll have to take them out...talk about a mood killer
A big pooh to your DH...get a night guard, try to grab a few moments a day where you can unwind and come to vent...