Characters With the Most Character Development In The Espada

Nnoitra got the most development at first we see him as the annoying a$$ he is but then the flashback came and we see that he wasn't all that bad and had a VERY good reason to crack the mask of Neliel, she followed him around and stereotyped him, who doesn't get mad after somebody constantly mocks them for what they are? People are FAR too hard on Nnoitra just because Neliel is pretty and nice to Ichigo that doesn't give people the right to say "oh Nnoitra was ugly and a bad character for hurting Nel" please if anything she hurt him and that is NOT ok, I'm sure Nel would suffer great pain hiding her true personality in order to not look weak and pathetic in a place like hueco mundo and on top of that he was probably treated as bad as it can get when a vasto lorde