The same numerically. You’re not that obtuse, so is this a joke or are you a cringey debatelord?

A 10 year age gap is the same numerically at age 40-50 as it is at age 10-20 but they are clearly vastly different. There's an implicit power imbalance.

If it really was a 4-year-old dating a 7-year-old, I unironically feel like that would be more comfortable, probably because "dating" between little children is kind of silly in my mind.

Overall, my take would probably be "An adult who deliberately gets into a relationship with a minor (like the friend's ex) is kind of weird, while an established couple with a 3-year age gap (like Jessica/Vitor herself) is fine."