real love,well,it's a kind of sacrifice.the sacrifice u made moves the other.what's more,this behavior should be mutual,by which the couple will discover a sence of correlation,a feel of needing.
By this one pleasing the other operation,maybe sacrificing or so,and getting paid or not,will enhance the ralationship.
IN my opinion,one should be paid and pleased.this should be mutual,as to be in the same rhythm,which will lead to the long-lasting harmony.