Absolutely not! While DP and I have only been together for 10 years there has never been and daresay will never be any violence or cheating going on. We yell at each other and crack it but would never raise anything other than our voices. And he is definitely faithful - he has very strong morals about this.

With my XDH there was cheating but it was at the end of the marriage and the marriage was already dead (for many other reasons). There was never any violence and we are still good friends so it doesn't have to be like that even if the marriage isn't good it can still be loving and amicable if that makes sense. I think violence and cheating indicates much bigger issues.