Second thoughts

I didn't think I was going to be the one that second thought this relationship yet i am… why? whats wrong with her? whats wrong with me? whats wrong with us? What should i do… i don’t want to lose her but maybe they are right she makes me more sad than happy…… she plays with other girls and she says she loves me… but does she… if she did she wouldn't hurt me right? so why is she… i don’t know what to do… or what to tell her cuz i can't take this any more having to fake a smile and fake i am happy when i am scared that i am just a play toy and she doesn't want a relationship just someone to play! I dont know when or what to tell her i am lost in time and thoughts of what to do. I dont want to leave her or give up on her… but i don't want her playing me for other girls…