Please I need your opnions

So my husband and I went to the movies with our two kids. We were in the middle of the movie and my husband kept being on his phone at this point I was annoyedbecause here we are at the movies trying to spend time as a family and he was on his phone a lot. So it looked like he was on facebook , we agreed we wouldn't have one since it had caused problems before. Well he wouldn't tell me the truth about facebook . I use to have one but I got rid of it over 2 years ago I dont remember my email or password so I created a fake profile just so I can search( yes I was doing it during the movie) . I wanted the truth since my husband wasn't giving me a answer. So I logged in and I found him on facebook and somepicture of him in vegas and stuff and pictures with random girls I do not know. I am mad because of the simple fact we have been living together this entire 7 years and not once did he tell me he went. He would disappear for days and claim he was at a friend's house in the area. As his wife I trusted his word , just to find out today that it was a lie. He stormed out of the movies and I grabbed my kids and my husband was in the bathroom. My husband told me to stop and I wasn't making a scene but I asked him please tell me I need to know then we can continue the movie. He refused and stormed out and said we are going home. He told me he hates me and that I forced him to have two kids that he didn't want. I'm currently pregnant with my 3rd and only our second child was planned. Here he is yelling in front of our kids saying this and I am being calm telling him really don't say that about our kid's. On facebook I found this girl that threatened to kill my baby a few years back and posted pictures of my son without my consent in personal msgs between her and I on facebook. At that moment showing no respect she never took them down even when he asked her to. He was bringing my son around her for a whole year behind my back so I told him you can talk to her but that means it's either me or her . He chose me .... I know I probably seem crazy but I an hurt all I wanted was the truth and if I couldn't get it from him , I'm going to get it my way. So right now he took a lyft and I have no idea where nor do I care right now. I asked my bedtie if she can ask her mom if I can rent a room out with my kids until my bby is here. Truth is I have no where to go I tried friends , family, coworkers, no one can help me . I know we need our space from each other I am just so hurt when I asked him a question he blew up on me . I need a place to live and no where to go .I have a job but don't make enough I wish I knew someone that would let me stay until I make more money for a few months and Shelters are full here in southern california and no help is available .