Am I overreacting or should I call off our date?

[Chris]

I met this girl (Nikki) through a friend after a bad dating experience with another girl. We hit it off and we had lunch last Thursday, which wasnt much of a date. That led to us planning an actual date for tomorrow night. However, today Nikki changes her profile pic to where a guy has his arm around her, but her relationship status stays single. So I think Oh well they're just friends. Then I decide to glance at the guys facebook. She wrote I love you<3 and her friend that introduced us wrote that they're so cute and junk like that. They put that the day that me and Nikki started talking. I know this seems pretty obvious, at least to me, but I just want another opinion because I dont want to be that guy who's "overjealous". Should I cancel the date until I find out for sure?