I Want to Know

Is it wrong to be jealous of my best friend?
well both her and I became single during the same month. I dumped my ex. Her ex dumped her. And now I have a gut feeling that she has found someone new. And its only been a month since both of our break ups. This happens every time someone dumps her or she becomes single, she gets a new man in a month or waits till 4 months. And I'm jealous that she's always with someone new and for me it takes a year or 3 for someone to be with me.