Living Seperate and coping

So me and my SO got into a big argument on Friday , I do want to point out and take part blame for this of how I could and have been . ( so please don't bash me I am just seeking the advice ) , my attitude and just how I literally handle a situation . I do have issues I'm not going to lie , but I am trying in many ways as possible the " time " we have a way from each other .

Well me and my SO were living together in Austin , since this argument happened , I had to come to his mom's ( in Houston )as he felt he couldn't handle me anymore and He needed his time...so I am currently here .

I really don't have family I can go to like that so I have to suit for this , the thing here is its not bad but at times its so hard because his mom and sister have their ways and have attitudes which makes me feel Sooo uncomfterable ,

And also we will be sleeping on a twin size bed in My SO little nieces room ( they don't sleep in there ) but its me , my son & my daughter and well I am currently 27 weeks pregnant .

At times we have to be quiet cause the Twins which are his other nieces and the cribs are also in the room , so even our sleeping situation we will have to Get up at a certain times since they sleep them in there early in the AM and mind y'all , my daughter sleeps wild....

I tried talking to my SO about Going back but he is so Determined that its not going to be right us there and I understand i mean we are toxic with each other right now . he wants to Hurry and get us an Aparment as soon as he can but I just ( and I might or am wrong ) but I asked why couldn't we be over there instead of here , its like he threw us here cause he cant anymore....

I know I am being selfish in a point , but than again my kids can't run and play around . we can't Just relax and chill , if I buy food its like I don't want her feeling some way because I have food stamps and honestly over all its so uncomfterable . I want to keep positive in this situation and go through this and deal with it , I mean although I know its been 3 days since the incident but its like I don't know how to cope with this .

I mean Is it wrong for him to just leave us at his moms cause he needs his time and doesnt want us to argue ( but yet hes out late at night " making moves " , being so friendly to other women at his job & leaving out with others ) hes never done that either .

He says he's stressed and how he never eats and I just went today to go pick up my clothes but the apartment is FILTHY . I'm getting off topic...I'm sorry...

But its like I have no idea what to do ladies , I just want to lock myself in a room and cry and sleep .

I mean I cant even get a job being this far along neither especially being high risk as well....I have to get weekly shots ( & also thats another reason why I need to be over here ) cause The drivr to Austin to Houston is " heavy " on me which I didnt mind but some how to my SO it became an issue as well....

Also what are some things to do to get this stress off my mind and off my chest ? I want to look for help Mentally but Homr wise too but my SO says I just need to wait For the Aparment and stop....but hes not in this predicament , I feel like my anger inside will only get worse.... 😖 that's why he made the comment " that's why I never wanted to live at my moms "... Shes my only hope with help so I do need to take it into consideration....I just am crying for help , I just don't know....its hard....