The WWE star made his opposition to marriage and having children very clear to Bella on the reality show.

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MORE: John Cena proposes to girlfriend Nikki Bella in the ring

Cena says he lost his faith in marriage after divorcing Elizabeth Huberdeau in 2012.

An extra-cautious Cena had Bella sign a 75-page agreement before moving in with him in 2013.

Cena clearly had a major change of heart — but just imagine how long that prenup will be!