I stole from you and I'm sorry.
What did you steal from me?
I took that TV you had in the living room. I really liked it.
Stealing is a big problem between two people as it shows a lack of trust and faith that is broken between us. It's good that you feel remorse so that we can move on and try to forgive each other.
I will return the TV as soon as possible.
I am glad that you are remorseful, but it was not correct to take something that didn't belong to you. You should apologize and learn from this situation so that it doesn't happen again.