the more you fight, the closer you are
Proverb meaning that frequent arguments can actually indicate a close relationship; often said of friends or couples who bicker a lot.
Those two fight a lot, but I guess the more they fight, the closer they are.
喧嘩するほど仲がいいって言うから、心配しなくていいよ。
They say the more you fight, the closer you are, so you don't need to worry.
喧嘩 is the noun meaning 'quarrel' or 'fight'; this proverb uses it in the phrase 喧嘩する.
仲がいい means 'to be on good terms'; the proverb contrasts fighting with closeness.
Standard kanji spelling for the proverb.
Variant with 良い instead of いい; slightly more formal or written.
A traditional Japanese proverb. The exact origin is uncertain, but it reflects a common cultural observation that arguing can be a sign of intimacy.