This is a bit of a complex topic since the story involves political and personal pressures that influence their decisions:
* In the books, Katniss and Peeta's marriage is a strategic decision to secure their safety and their families' safety. They initially had a relationship that started as a survival tactic in the Games, but it evolved into genuine affection.
* In the movies, while their relationship was portrayed as more romantic, the strategic aspects of their marriage remain. The political implications of their union are emphasized, particularly in the final film.
Ultimately, despite the difficult circumstances, their marriage is a choice they made together, rooted in their shared experiences and their love for each other.