thinking of leaving my husband

so lately I've been on my man's case cause I feel he's doing something and tonight he just blew up on me saying I don't wanna do anything and I'm constantly saying something to him and bothering him at work I can't help but think he is cheating he just made me feel horrible.. keep in mind right now are relationship hasn't been to good and I can't take much anymore even since Im sick right now I feel I can't express my feeling of pain cause he gets angry he keeps stuff from me and I know it. I know I'm not wrong I've been thru this before and didn't wanna do it again I honestly wouldn't care if I raise both kids alone I'm just done with all this