Jackie ends up in a complicated love triangle between two Walter brothers, Alex and Cole, in "My Life With the Walter Boys." By the end of Season 2, Jackie confesses her love for Cole after he declares his love for her first. However, Alex overhears this confession, and there remains unresolved tension and feelings between all three. The season ends on a cliffhanger with Jackie genuinely torn between the two, leaving her ultimate choice open and uncertain going into a potential Season 3.
In the book, Jackie leaves Colorado for New York with Danny but only as friends, and her romantic relationship with Cole remains undefined, suggesting a possibility of rekindling in the future. The TV show follows a similar unresolved ending to keep the love triangle alive.
So, as of the latest season, Jackie does not definitively end up with either Alex or Cole but is shown to have deep feelings for both, creating a suspenseful ongoing romantic storyline.
