Not getting compromised and running after egos is making a wall between couple.
Disputes are quite general in a family, but during dispute if one stand on peace and agree their mistake then problem is solved. The anger one would definitely regret for his anger sooner or later.
When there is yelling and anger from both sides no one gonna stop them. Lack of commitment leads to such kind of thing.
Additional to that addiction to something like alcohol would also bring in disputes !