Cute and Romantic date ideas?

Martha • I don`t bite(:
My boyfriend felt left out the other day around my friend, and I feel really bad about it, so I told him that I would make it up to him.
​I'm thinking about an indoor picnic and giving him a cute surprise gift.
​So far for the gift, I bought a notebook and I've been writing letters for certain scenarios since I don't see him often, but I don't know what else to include in that notebook or what food to serve on our picnic.
​Any ideas?(: