【気を遣う友達】
● I have some friends and they are very kind to me, but I can’t be myself with them.
or
● I have some friends and they are very kind to me, but I feel a little bit uneasy with them.
訳：私にとても優しくしてくれる友達がいるが、少しだけ気を遣う
can’t be my self：
uneasy：
【気が合う】
● She could find a friend whose personality matches her.
or
● She could find a friend who has the same chemistry.
訳：彼女は気の合う友達を見つけることが出来るだろう
● She could find a friend with a similar personality.
or
●She could find a friend with the same chemistry.
訳：彼女は似たような性格の友達を見つけることが出来るだろう
● Their personalities don’t match.
訳：彼らは気が合わない