Wife warming up?

I (male) have told my wife about my fantasy and has said that'll be all it is.

Before me she, her ex & another couple swapped however she didn't feel comfortable and this has put her off since.

One night we was talking about regrets sexually & she said she wanted BBC and got with a huge black guy but had a small cock.

When I've bought this up since, she's up for a BBC toy but not the actual thing.

Roll on to recently and after many hours out wth friends, we went home with our friend and carried on the party with booze and other substances.

The last few times we've had drinks, he's dropped hints about not having sex recently and how big his cock and balls are.

As the night went on, we played truth or dare. One way or another, I said show your tits which she did. Our friend didn't know what to say.

A few minuets later, he mentioned his dick size again, my wife said I'm big and she loves big cocks and admitted to being a size queen.

Me & the wife went in the kitchen and made out after, I was thinking, this is it, here we go!

I asked her are we ready, she said not him but then carried on flirting.

She then passed out and it was just me and him and he said he loved her tits and I'm a lucky man.

The next day she could remember bits and pieces and when I said that he loved your tits, she had a smile.

Do I keep pushing with this one guy as I'm confident it'll happen? Any tips would be great