Billy also opened up about how emotional he got while watching Dave's wedding back on TV.
Dave also had nothing but praise for Billy, calling him his 'favourite groom' of the season.
'Him and I, throughout the night, connected, looking at each other and pulling faces, and we knew that we'd get along straight away,' Dave shared.
I had him like a wall that I could bounce off when things got hard - someone just to listen when you needed to chat.
'To have Dave with me throughout the show was so important to me.
