How can spark her desire and affection?

[shawnmark]

I am recently engaged and I love my fiance very much. A big problem I have with her is that she shows little desire/affection for me.

[Buddhist]

If you've gotten as far as engaged to be married then I'm sorry to tell you that what you are seeing is what you are getting with her. Perhaps this is just her personality or her preferred love language. That's not going to change because you've suddenly got engaged and it would be bit disingenuous of you to expect a major change at this point.