Living with a short temper and attempting to maintain any sort of relationship is a complicated balance. It's a hypothetical tight rope walk, balancing your opinion and your bubbling need to scream at someone about it is a slippery slope. Many are unable to keep from falling. For couples, this is especially hard because for some reason, fire tempered folks always seem to attract other short fused individuals, resulting in an explosive and insane relationship dynamic that passive people will never understand.
Conflict avoiders wouldn't get that a fight isn't necessarily a bad thing. Just because everybody's yelling, doesn't mean that something awful is going to happen. For couples who fight but still stay together, the fight is usually just the precursor to a pretty wild night. So unless you're prepared for a public meltdown that leads to a pair of handcuffs and a whip at home, these types of relationships are probably not for you.