Seann Walsh says cheating on Rebecca Humphries was "a form of abuse".
The 33-year-old comedian caused a scandal on 'Strictly Come Dancing' last year when he kissed married pro partner Katya Jones outside a bar while he was in a five year relationship, and now he's admitted he agrees with her statement accusing him of "reacting aggressively".
Appearing on this weekend's 'The Jonathan Ross Show' - which airs on Saturday (02.03.19) - he said: "I think that when I first saw that statement it was so huge and you go through a mixture of emotions and I didn't really know how to react. But I think with the time that I've had, that actually she is right, I think everything she said in that statement is right.
"At first it's denial, initially you look at that and you go, 'No absolutely not'. But with time, someone that you cared about has written that about you and posted that and I think that actually, yes she was right what she said.
"And I think if you lie and cheat on the person that you're meant to care for and be in a relationship with, then that is a form of abuse, of course it is. All I can be is as sorry as I am. I hope one day that she'll forgive me."
Seann added that he will "always be sorry" for his "selfish" actions, and insisted he still cares about - and respects - his ex.
He added: "I will always be sorry about what I did. I think when it all blew up, I don't think I reacted in the correct manner. I didn't know what to do, it was huge.
"It has been some time since then, I have had a lot of time to look at my actions, look at my behaviour and take responsibility as well.
"I think when you have gone through something like that, you end up thinking in cliches, like, 'If I could go back in time, I'd behave differently and treat her differently', but unfortunately all I can be is as sorry as I am and as regretful as I am."
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