Not just affection
Love may be limitless, but time is not. She won't have all of your time, and will likely have less than your husband...unless you divide equally. Reassure her that she will be able to have a relationship with your husband, should that happen....and that she will be able to meet needs outside of you and him.
Unless you're truly willing to meet all of hers, in which case, you have more responsibility towards her than she has towards you.