Second chance

I'm currently three weeks in grieving and being depressed after finding out my partner been cheating on me the past two months, I always known the type of person he was and I always told my self to prepare, and over time two kids together after five years he cheats and with a family friend of his and it got me hard because who the person was but anyways now that it's been three weeks and I'm sleeping in a seperate room and keeping my distance my husband gave me my space and it sucked I don't think he clearly understands how bad this hurts and how I feel he distroyed our relationship especially my trust , and like this is my second marriage my first marriage was traumatic and I left after 8 years , so now I feel like I'm repeating that cycle and I'm feeling defeated!!! Like I lost at life or relationship idk , but I'm at the point where I want to give this a chance but I already know I need to use this time to prepare myself to leave because I don't have high hopes now that I feel this marriage it's just a repetition of my past . Idk if marriage counseling will help us or if it will work.