Recently ended a couple of different relationships.

The first, a friendship with a girl I've known since preschool. I'm taking this one really hard and I'm wondering how I should go about this. She said she wanted to patch things up, but I'm the only one who has put forth any effort. All of which has been deflected. Do I continue making an effort or do I let it go?

The second, an emotionally conflicting romantic relationship. My feelings for him jumped majorly on a day to day basis because he was very indifferent with me on some days and very loving on others. I was very emotionally confused throughout the entirety of the relationship. And crushed when he decided to seek out affection from another girl. I felt guilty and ashamed because I took the initiative to "beg" him to take me back. A month later, I ended things. At first this left me feeling relieved and happy with myself for getting the courage up to finish things as I thought they should be. Now I'm back to feeling confused and wondering if I should try to reconcile at least a friendship with him. Or is that just utterly stupid?