She just doesn't get it...?

ok college was fun and I had my ups and downs, but some of the ppl I was friends with then...I'm not with now because of lies and slander. I'm a different person now, with different friends and a promising future with whatever happends. However, my old college roommate texts me every new year to ask if we can start over. Every start has failed...she remains the same. I can never trust her, nor be a loyal friend to her only because she wasn't to me. Am I wrong for not wanting to start over? She's just too two-faced for me.