I am a straightforward person and sometimes it might hurt people.
I say things (right) to someone's face, so it may hurt them sometimes.
It hurts people sometimes when I say things directly to them.
彼女に取って失礼かもしれないが、私がはっきり物事を言ってしまったーI knew she thought I was rude because I said it right to her face.
彼女がずっと私のことをこのように思っていたけど、まさか私にはっきり言うとは思わなかったー I thought she felt that way about me, but I never thought she would say it to my face.
以上は個人的に使う表現になります。どうぞご参考までに。