I understand Anakin and Padme had to be a couple to establish the story of the original trilogy. In a more realistic universe, Padme and Obiwan would have been the couple. I felt that those two characters had the same maturity, personality and mindset of the world. they were more compatible from the little interaction we saw.
Anakin was immature and bratty. There is no correct logic why Padme would be attracted to him even from a motherly view point. If not that the story demanded a paddle like figure to be Luke and Leia's mother. Padme and Obiwan would be the central couple in star wars helping raise their bratty son Anakin. I have seen some Padme and Obiwan shippers in the star wars fandom. Anakin and Padme seems to be on every worst chemistry list in fiction.