Appleton and Gallagher's marriage hit the rock bottom earlier this year when the news surfaced that the latter fathered a secret love child with US journalist Lisa Ghorbani.
Williams was engaged to Appleton in 1998.
"I have a very big soft spot for Nic because she's a very decent person," femalefirst.co.uk quoted him as saying.
"I feel sorry for her as she deserves to be in a good place, in a happy marriage, and I thought she was with Liam. But it would appear that they weren't. Nicole really doesn't deserve all that from Liam. I've very, very fond memories of her. She's a sweetie," he added.
--IANS (Posted on 15-11-2013)