Between his career and patching things up with T-Swizzle, he's a busy man these days!

Harry Styles and his One Direction bandmates stopped by for an appearance on Jimmy Kimmel Live last night, but the reason everyone's talking about the British hunk has more to do with the fact he is back on speaking terms with his ex Taylor Swift!

The boy bander might want to think twice before reigniting a romance with the bubbly singer, because it sounds like she hasn't gotten any less intense about relationships since taking a year long break. "Taylor is so excited that she and Harry are talking again. She was in love with him and he broke her heart — that’s why she hasn’t dated anyone since him. She still likes him. Taylor won’t admit it, but she’s not over Harry. She practically does a happy dance whenever she hears from him. And she analyzes every word he says. She’s obsessing over him and finds a way to bring him up in every conversation, that’s why even her trainer knows they’re talking again," a source dished to Hollywood Life.

The duo allegedly caught The 1975 concert together at the Palladium in L.A. on Wednesday, and although their hangout could have been platonic, we doubt that!