oh the wonders of you tube.
Have a phone with video, or just a video camera
Create a loving video for your partner. You can star in it yourself and tell them how much you love them. You can quote poetry. Look back through this blog for some you could read. If you put poetry in the search box of this blog you will find some you could read on camera. Once you have uploaded the video be sure to send them the link so they can enjoy it as often as they like. They will love the personal touch of your romantic spirit.
The cheats version of this idea is to find a romantic song on you tube and send them the link. Now this is no where as good but still a nice idea.