Just checking in on you. Seems like your H is spiralling out of control at the moment. Stop answering the phone. And I was going to post what the others before me have said - the truck is marital property - until there is a settlement - do as you wish. Personally, I wouldn't rile him but the whole sherrif at gunpoint thing is ridiculous. That is harrassment and some of the other accusations border on verbal abuse. Leave it alone.
Document the things he says that are abusive or threatening as you may have to tell your attorney and/or police (if it comes to that). Get the advice from your attorney about his access to your home. He should be doing the laundry in the laundromat like everyone else living in a camper does - absolutely NOT IN YOUR HOME! He is a control freak and he is trying to upset you and keep a hold of everything. That is emotional abuse.
Honey, you do not owe him answers right now so GO DARK. Don't text. Don't phone. Don't leave notes. Let him flap in the breeze - this is not the worst thing for him right now.
Personally - who would want to be with him the way he is. And as far as a possible OW - do not ask. He will only lie to you anyway. Let it go.
I know this is tough. It is close to impossible sometimes NOT to react (just ask me - I failed miserably), but this is what you need to do.
