I don't want to lose her now... I need some help?

My boyfriend and I went through the exact same thing. I was very hurt by my exes, and I didn't really trust him with my heart. He pulled through in making me want to commit. Honestly, I hated the idea of love. I didn't believe in it. I was young, and I believed that I wouldn't even make it past six months with him. Now, how did he make me have faith in our relationship, you're wondering? He told me that he is not any of my exes, he showed me that he genuinely cares about me by taking care of me when I was sick, and he took me out on dates so many times. He made me feel special, loved, cared for. He makes me smile, and although he makes me cry, and super furious at times, he knows how to calm me down and make me laugh. He has proved to me that he wants me and only me by dedicating most of his free time to me. Of course I'd let him have his guy time, he does not need to be so dependent on me. Well anyways, just show her that you really care about her. If she doesn't believe you, keep hope alive for as long as you could, and if things don't seem to change, you have got to move on. Only she can change her mind, only she can make herself trust you. You cannot force her to have a change of heart, you can only influence it. Good luck. (: