How do I break this cycle and move on from who I love?

[anonymous]

So I have been talking to this boy for 3 months and we have gotten really close during that time. We even tell each other we love each other. The problem is that he can be mean, arrogant, mentally abusive, and controlling. I've tried many times to cut him off but he just comes back apologizing and sweet talking then I forgive him every time. Its gotten so bad that when I say "if im not the only one you talk to I'm leaving" and he'll say "you say that all the time" im tired of this cycle. I really want us to work out but he just frustrates me. He wasn't always rude and mean this just started happening as we became closer. He even told me that he was the best thing for me and I didn't have anybody else. I'm only 16 and I'm too young to be stressed out like this. I feel like Im on a treadmill running and running and running but still not reaching the goal of us being together. I really do love him he makes me laugh and we actually have a bond or friendship but im tired of making him my priority while he continues to make me an option. I feel just feel pathetic.