Do you have local parks? Its really nice to bring a picnic and eat dinner in the park.
Go for long walks. Or bike rides (if you do such things) or other physical activities.
Learn another language together.
I don’t know the Five Towns that well so I can’t be too detailed.
Do puzzles together. 3D ones are super fun because you are literally building something.
Take up a hobby that’s productive. Learn basic “how to” like redoing dressers and stuff. Go dumpster diving for practice materials.
I love chess. Or card games.
Take cooking lessons together. Or just pick elaborate meals and make them together.
Keep your apartment spotless and marvel at the ability for it to stay clean. You’ll look back during your child filled years in awe and wonder LOL.