Congratulations and welcome to the board
For what it's worth, I'm not sure pearl jam is a great wedding playlist band. Actually, I'm sure they're not. Many of the songs aren't particularly danceable (or even fun in the party sense). Do you just want background music for a reception, stuff you want your guests interacting with, or just a few songs to dance to?
Beyond Oceans, Just Breathe, Wishlist, Parachutes and Future Days (around the bend is at least gentle and tangentially appropriate) there aren't that many purely romantic moments in the catalog. It makes sense to do what you want to do, but even though it is your party and your day if the people around you are having a great time you'll have an even better one yourself. It probably just makes sense to incorporate a few of those into a broader setlist rather than push a 3 hour playlist. I mean at what point do you really want people listening to long road or immortality at a wedding?
Oh, and obviously the song for your post vows exit should be The Fixer.