I think my marrige is over

so we have been married for 8 yrs in July but he wount quit cheating on me telling chicks he dosent know and will never meet that he loves them and will send them money pic ect and when I confront him he just says it might happin again but he loves me idk what to do but I am getting tired of this shit I am really to grab my crap and leave but have no where to go I am in health care and my job passed away been looking for another one I feel like i am the only one who wants to make this marriage work he could care less lately hes been talking about dating and how easy it was I told that he full of crap because his last gf before me cheated on him used him for money and then never called him back tell she needed more I am at my wits end until I get a job I need to use his insurence to help pay for the pills i need daily I am so exhausted trying to keep this marriage together but I a afraid/know when I get a job I will come home and he will be with someone else what do i do?