Should I walk away ?

Ok so I've been with my so for 3 years married for 2. I live very well with him financially I don't struggle with money. At times things feel so great than out the blue he's upset. He tells me I knows what I'm doing wrong and that's why he's insecure. I'm a home body I NEVER go out at all. I also still keep my job because I feel secure having my own money. He constantly accuses me of cheating. I feel overwhelmed should I walk ? Should I keep trying ?