Why are christians so lovless when it comes to marriage?

Christians are trying to explain what heaven is like and can only compare it to the love they know and think that you could relate to, they do love each other. They are just using what they consider an example that you can relate to. I am confused over the part of this question. IS this how you equate being loved, having ? There is so much more to love than . I feel so bad for you if that is how you judge being loved.