The so-called 'love at first sight' (when one is attracted to someone without even knowing him/her) or 'getting under one's skin' (the emotion of frustration and anger that is suppressed (psychology) and continual) are the situations which are controlled by emotions inexplicable to the one experiencing it, and as a result of which causes one to feel that he/she has a good/bad aisho with the given person.
いわゆる「一目ぼれ」（訳も判らず一見で気に入ってしまうこと）や「癪に障る」（苛立たしいと感じる・怒りのうち抑圧(心理学)され継続的なもの）など、当事者には説明しがたい感情に支配された結果、相性が良い/悪いとみなされる場合もある。