From what I've gathered reading a few sh1te papers recently. these two got married, the Kyle show pestered them to go on, they did (stupdily, but some people arent as bright as others). They were kept apart backstage and wound up by researchers. The audience are wound up to too to react horrbly to the guests and she was called a slag by JK. Admittedly no-one but her boyfriend held the gun to her head but it was this show that drove him to it, not necesarilly finding out he wasn't the father.
As much as I have no time for the low lives on Jeremy Kyle, they can't help being a bit dim, this man makes his money taking the pi55 out of them in a freak show.