You want a meme answer or a legit answer? Guess I'll give both.
Go with the Das route and do some heavy duty sex times.
If not, just do something enjoyable together. Go out together somewhere, have a nice meal, see a nice place. Depends on how romantic you are or want to be really. Hell, even if you just close up shop and stay in bed together all day, that's fine too.
Glad things seem to be going well at least. Last time we talked stuff was sketchy between you and him. Hope it's smoothed out a bit.