"Hi..." Katie didn't embarrass easily under normal circumstances, but a slight flush colored her cheeks as she realized she was lying on top of her ex-boyfriend. Not the ideal way to bump into him again, really.
"Er, yeah, I'm really sorry. I was just a little pre-occupied and and I wasn't looking and... really sorry. I didn't mean to knock you over."
As she scrambled to her own feet, she held out a hand to help him up. She wasn't normally so rambly, either, but she wasn't exactly feeling like herself with Alicia missing.