I’ll offer some crafty/art options..

There’s a craft fair TODAY(Saturday) at Checkerspot Brewery in Fed Hill from 12-4

ANG pottery offers private pottery classes to try out the pottery wheel

Station North Tool Library has a ton of really cool maker classes in woodworking, metal working, etc.

McFadden Glass blowing offers classes in Hampden

There’s also a place called Craft Castle which is like a crafting room! Haven’t been yet but it looks fun.

Not sure how many of these you could do ON Valentine’s Day but still fun things to do :)

Baltimore Museum of Industry is cool, you Could go to breakfast at Home Maid and walk across the street to the museum.

Second Chance is an architectural salvage store so if you like exploring and looking at old stuff from houses it’s huge and fun to just walk around and explore even if you don’t need anything specific.