The already rocky relationship has reportedly ended, because Calum didn’t find Lohan to be fun after her stint in rehab. Lohan is determined to stay sober after her latest treatment.
A source told Britain’s Daily Star, "Calum called Lindsay last week and said he was finding her post-rehab existence dull and that he didn’t want to give up partying. He loves Lindsay but he’s simply not in the same place anymore."
Lohan and Best began dating earlier this year.