Praise be to Allaah.
The husband should avoid saying such things, which are open to misinterpretation. There is nothing in Paradise to which anything in this world can be compared; they do not even come close. The husband has never seen or tasted the water of Paradise. There are sufficient permissible words of kindness and endearment that there is no need for expressions of this sort. And Allaah knows best.
Sheikh Muhammed Salih Al-Munajjid