Should I avoid serious relationships for a while?

I'm dating a girl for the past 7 months. I've never had many girlfriends because I felt insecure about myself. However, I'm an attractive guy and since I started university I'm meeting a lot of girls who show interest. My current girlfriend is beautiful and our relationship is great. But some how I feel like maybe I shouldn't have gotten into a serious relationship just yet, because now I want to explore my feelings with these other girls, just to see what's out there. My current girlfriend is practically the first girlfriend I've had. And yes, I'm wondering if the grass is greener on the other side
Should I avoid serious relationships for a while?
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