Travis Kelce's ex-girlfriend is still struggling with the fallout of their relationship ... with Kayla Nicole breaking down in tears as she talked about their split on a new TV show.
It's all included in a trailer for Fox's upcoming season of "Special Forces" ... with the social media influencer deeply emotional as she weighed in on how "overwhelming" it's been to deal with a breakup in the public eye.
The clip -- first shared with Us Weekly -- shows Kayla wiping away tears as she opened up on her experience .