Reading too much into something — interpreting a remark or situation excessively and making unnecessary inferences.
彼の一言を深読みしすぎないほうがいいよ。
You'd better not read too much into his one remark.
メールの絵文字を見て深読みすると誤解を招くことがある。
Reading too much into an emoji in an email can sometimes cause misunderstandings.
会議であの発言を深読みして行動を変えるのは早計だ。
It's premature to change our actions based on overinterpreting that comment in the meeting.