I need help.... Advice.. Im desperate

What would you do if you husband didnt come home from work?

This morning my husband and i got in a fight. I basically told him i regretted marrying him and he wasnt who i thought he was. I havent been happy in a long time and im pretty much ready to leave him. Im pretty damn sure he has cheated on me or at least is going to/trying to. Ive caught him texting at least 3 other girls asking if they wanted to hang out, blah blah. Well he went to work today and i havent been able to get a hold of him all day long. Ive called him multiple tines, texted him, nothing. Its now almost midnight and he got of work at 5 and he hasnt been home or called me or anything. I have no idea where he is or who he is with. Ive been crying for the last hour, trying to get a hold of his friends and his mom. No one has seen or heard from him. I dont know what to do. I have a feeling he is with his boys getting drunk and probably smoking weed. Since i said what i said in our fight, im pretty sure he is scared to come home but he is being a coward. He needs to just face the music and come home. At this point i dont even care what he is doing, i just want him home. What would you do in this situation? Have any of you ever been in this situation before? How did it turn out?