15 can I trust you again??

I thought a lot and finally decided to give him another chance. But I told him we are not in a relationship as I need some time... we'll start as friends for now and he agreed to it. But i was very happy that he realised his mistake and wants me back in his life but at the same time I was doubtful about our relationship because no matter how much I try but I couldn't forget the things he had told to me. I was not able to take it out of my mind.... obviously the one that you trusted the most doubts your character and tries to control...it's difficult or nearly impossible. But I was an emotional fool...I was blind in his love.....I wanted to forget the past thinking that now he has realised his mistake and won't do it again... there's a quote that I read some time back, "be good enough to forgive someone but don't be fool enough to trust again" this was something that now comes to my mind whenever I think about my situation at that time. but past is past no can change it...so I each day remind myself to love myself and be proud of myself.... never to give in to emotions, never to lose my self respect for the sake of saving a relationship.... never ever ever lose your dignity... you will regret it for the rest of your life...so after a year of our so called "friendship" deal, I was finally forgetting the past.. whatever he did was slowly vanishing and I was finally ready to move on with him...I know this was my dumbest move but I can't change anything...by this time I was now 19.. and he was 20, we were practically adults and were in college now