Can you describe Pauls character throughout the story? how was he feeling in the end

Paul is a disenfranchised bundle of adolescent angst. He is like Salinger's Holden Caulfield with even less friends. Paul is a static character until the conclusion of the story. He compensates for his lack of self-esteem by escaping into a very warped sense of identity. Paul feels that he is above everyone else, above the system, above his social class. Paul feels he is an aristocratic connoisseur of fine art and all things expensive trapped in the mundane middle class. After Paul makes his escape with the stolen money, Paul briefly lives the life he feels he was born for. Although Paul looks awkward and out of place, he feels he belongs; Paul finally loses himself in his fantasy. It isn't until his suicide that it occurs to Paul the realities of his world that he will miss out on,

"As he fell, the folly of his haste occurred to him with merciless clearness, the vastness of what he had left undone. There flashed through his brain, clearer than ever before, the blue of Adriatic water, the yellow of Algerian sands."

It is, however, too late for Paul to reconsider his hasty jump in front of the train.