Where do men go when they get mad at thier wife?

My husband has been gone for 2 1/2 days because we got in a argument. I have issues with trusting him because of his past mistakes, & I bicker out of frustrastion. I do love my husband of 2years with our 1year old son. He's 21 & I'm 19 so we are fairly young.he used to be in the army but finally got out.the army ruined our marriage in a lot of ways that words can't explain.no he is not cheating & I am not cheating on him.we just got back together in november last year,& we were seperated for about 3months previously.its a pattern for him to walk away but usually comes home in afew hours.last time he left for 3days but he ended up at my uncles.we called my uncle but he's not there.he has no cellphone money or I.d & no friends or family here.last time he left for 3days I forgot to mention,he slept behind the hospital building our son was born at.I miss him & I'm worried.so I was wondering where would you go?