But were Zac Efron and Michelle Rodriguez actually in a full-blown relationship? Up until now we figured they were simply each other's summer vacation flings...

But apparently the 26-year-old star and Michelle, who is ten years his senior, have split after about two months of dating. "Michelle is going to do her own thing. Zac knew this about her when he got with her," a source tells Us Weekly. "He's very into her though, and perhaps more than she's into him."

Another insider tells the mag that the couple broke things off after getting into a "huge fight" in Ibiza. But it may not be the end! That source added, "Zac still wants to be with her."