I apologize to an extent...

Have you ever been told by some one that they 'apologize to an extent"? What exactly is this? Are we putting stipulations on the apology? If that's the case, I'd like to put some stipulations on my acceptance.

I only accept if you say it sincerely.
I only accept if you use the exact words I want to hear.
I only accept if you know everything you did that hurt me... even the most minimal detail.

Come on. If you are willing to apologize, don't be so proud to add that "to an extent" so that you don't look quite as guilty for hurting someone else. I mean, it may make you feel better, but what about the person that you actually hurt? If you are truly sorry for hurting that person, why make them continue to feel guilty "to an extent"? So you don't feel as bad? That's my guess.