Hate towards my ex's?

Alyssa
Im 15 and ive Had 3 boyfriends/things and I'm disgusted by who they really are. I feel so much shame that I had them for the way they treated me and how I could of done so much better. But again they weren't serious I just feel emberassed about what Boys I have "encountered" in my life. Any one else has ever felt like this? Please share