After arriving at the hospital an hour before her ceremony, Sinèad was able to show her dress to Leslie and be with him to share their father-daughter dance.
Footage of the tender moment shows Sinèad in her dress and Leslie in his wedding suit slow dancing to This Dance, by Scott Thomas Laughridge.
“I just fought back my tears for my Dad because I thought I can’t cry,” she said. “He kept saying sorry to me.”
Sinèad said she met her now-husband Stephen at college when they were both 17.
The couple have been engaged since 2015 – and after finally deciding to tie the knot earlier this year, Sinèad said they could not wait for their big day to arrive.
Sinèad said she “couldn’t believe it” when Leslie was taken to hospital on 8 October.
“My mum rang me [and] told me my Fad was really not well,” Sinèad recalled.
“She said he was in hospital and I was crying, she was crying.
“I felt really upset.”
After visiting her dad the following day, Sinèad said she knew he was not going to be able to leave his ward.
“The nurse explained to me how bad he was and said he shouldn’t be allowed out – even for an hour – because it was such a high risk,” Sinèad said.
“It was very sad.
“I could see it in him as well – and he was a bit like breathless, which is unusual.”
Leslie told his daughter to continue on with the day despite him not being able to attend.
“But Dad being Dad – he’s just stubborn,” said his daughter.
“He told me not to postpone it.
“He kept telling me not to worry and to just get on with the day.
“He said he would see the pictures and videos.”