happily ___ after. Crossword Clue

 The answer to the crossword clue "happily ___ after" is EVER. This is a 4-letter word that means for an unlimited or unspecified period of time.

In the context of the clue, the word "ever" is used to suggest that Ava and Dana's happy ending will last for a long time. They will always be happy together, no matter what challenges they face.

The word "ever" can also be used to express a wish or hope. In this case, the clue is wishing Ava and Dana a long and happy life together.

I hope this helps!