u can seek help from ur in-laws to talk to ur husband becoz u said u want to save d marriage for d sake of ur children.

if u have exhausted all your efforts and still ur husband do not stop cheating. it is not ur fault, it is all his... and maybe someday there will be a miracle and he will leave this girl.

if ur children are grown up already (18 above) u can try to tell them ur burden. maybe dey cud help ur husband to stop cheating. i know he will not be able to handle that. i know someone did that and save the marriage. if not atleast the mom was understood by her children and they got closer.