The 29-year-old dated the "ME!" hitmaker back in 2008, but the pair split after only a few months together. And, while Taylor previously slammed the star for dumping her over the phone, Joe - who wed "Game of Thrones" star Sophie Turner last month - revealed during an appearance on the British morning show "Lorraine" that the pair are now on good terms.
"It was something I felt bad about when I was younger, but I've moved on and I'm sure she has," the "Sucker" hitmaker shared. "(Her apology) felt nice."
Taylor, 29, also reflected on the split during a recent appearance on "The Ellen DeGeneres Show", and shared her regret over publicly speaking about the separation in 2008, when she said, "We haven't talked since, but you know what, someday I'm gonna find someone really really great who's right for me."
"When I look at that person, I'm not even going to remember the boy who broke up with me over the phone in 25 seconds when I was 18."
Appearing on the show again last month, the star - who has been dating English actor Joe Alwyn since September 2016 - hinted she and Jonas were back on civil terms, admitting during a round of Burning Questions, "I was 18... We laugh about it now, but (talking about the split) mouthy, yeah, some teenage stuff there."