UPDATED: SO hasnt come home worried venting

My SO and I had a little fight last night which i did get over by the time we got back home from dinner. This morning he left for work usually im dead in my sleep and i dont hear him leave or even get up. So whenever i did wake up i left him a good morning message no response, told him i was going to take our pup to the dog park and i called him when i was on my way there no response. I got back home texted him and called no response. He would get off of work by 8pm and i was waiting and waiting figured maybe he was going out with friends and 2 hours went by (10pm then). I text him that the front door and bedroom door is unlocked (he forgets the house keys and doesnt have them on him considering im home all day). So i then call him around 10:20pm and no response. This really isnt like him I dont want to stress about this but im worried about him he never really does this he would always answer my calls  and texts. Its now 12am and im sitting in bed just hoping to hear his car pull up and the front door open. I cant really go to sleep my anxiety is getting to me and i know he could probably be in his car sleeping and probably at his job but im just really worried. Every time i called he wouldnt pick up his voicemail has been full so i cant even leave him a message. I cant really do much but wait and i justwant  him to come back home.