Awwwww, this news makes me sad. Sophia Bush and her long-time boyfriend Austin Nichols have called it quits.

The 29-year-old actress has been dating Austin, 31, since they co-starred on One Tree Hill together.

A source told Us Weekly Sophia “didn’t think he was the one,” and added “she’s moving on.”

She was previously married to OTH actor Chad Michael Murray before they divorced in 2006.

She remained quiet about dating Austin until 2010, when she confirmed they had been dating for four years.

Who’s she going to date now that OTH is coming to an end after nine years?

Tags: Austin Nichols, Chad Michael Murray, One Tree Hill, Sophia Bush