I can't give you any ideas, but I would suggest rather than gifts, studies say that people our age,

value experiences more so than "things". Maybe you could plan a really cool trip on your bikes that includes an overnight at a very romantic place or some kind of touristy thing that you have never done yet. I know you both enjoy dining experiences, perhaps there is something he has wanted to do that you never have before. Living with someone who buys too many things has turned me off to "stuff", I much prefer to "do things" than "get things". That's just me.