Yes, Arnold ends up with Helga. If you watch the Hey Arnold movie from 2002, you’ll see that she confessed her love for Arnold only to later retract it (although Arnold knew her retraction was false). SPOILER WARNING: Yes, Arnold ends up with Helga.

What is the ending of Hey Arnold?

Arnold and the city’s children reunite with their parents. Arnold thanks Helga for her loyalty and finally realizes the depths of her feelings for him, and the two share a kiss.

Why does Arnold have crush on Helga?

Because of her parents, Helga is unable to really connect or bond with her older sister, Olga. That neglect is what leads Helga to be deeply insecure, despite being gifted for a nine-year-old. The reason she likes Arnold is that he was the first person who was ever kind to her and treated her like a person.