Neville's Confession Of Love For Luna Actually Made No Sense In The Harry Potter Movies

With their lives on the line in Harry Potter and the Deathly Hallows Part 2, Neville Longbottom confesses romantic feelings for Luna Lovegood, yet that doesn't really make sense given what the franchise told us to that point. Neville and Luna are both close to Harry, but they are social outcasts otherwise. They perform well within Dumbledore's Army but even Harry is unsure of their prowess in a fight against Death Eaters.