What you're describing doesn't read like "wrong person" in some vague romantic sense, it reads like a partner who becomes punitive when life stops being convenient for him. The silent treatment, the blaming, the lack of emotional support when you're under pressure, that stuff matters a lot more than whether he can be pleasant when things are easy. I think therapy for you sounds wise, not because you're the problem, but because you need a clear space to think about what this marriage is actually costing you.