CF went with creme brulee, I'm going to gow with an old favourite and use checkers😀
I think it is pretty much established fact that it wasn't playing checkers that caused Angel to lose his soul (as his former playing partners Nina and Darla can atest to). Like Wesley said, what Angel found with Buffy is unbelievably rare. He lost his soul to her because of who she was, how she made him feel, what she meant to him and because she felt the same way about him. He had spent a century believing he was the scum of the earth and the Slayer of all people loved him as much as he loved her! One of the Buffy novels summed up the best way for me..."For the first time is his life, Angel had hope of heaven".
I don't think Angel can indulge himself with hopes like that anymore, he was naive with Buffy. He had seen more than she could have imagined at the time but the worst was still to come.
Personally, I'm not sure if Angel is capable of perfect happiness anymore. Partly because he is aware of the curse now but also because of everything that happened in his life after Buffy. She (nor anyone else for that matter) can take away the hurts of Connor, Cordy, Wes, Gunn and Fred no more than Angel can make the pain of her mother, heaven, Willow, Tara and Giles go away.