Hurt and Alone

The love of my life left me two weeks ago after 3 years. He was my first everything. I am someone who falls completely in love and is actually willing to give my life for them. When he left he said he needs to figure some things out. We have been trying on and off for months. Yesterday he finally explained it more in detail to me and how he is going about working on things he needs to. He said he was doing it in 3 steps. The first is seeing how being single is for him and he said it wasn't going well. The second was him going to see a girl who he isnt sure he has feelings for. Now there is a whole story to her and she isn't a good person. To sum it up, she told me to go hurt myself because he would be better off without me. He doesn't see it because she is totally different towards him. He said that he is going to go visit her to see if there are feelings. He says he doesn't see her like that and doubts it will work but is confused. And the final step was coming back to me. This made me happy because its all I want. But it makes me feel like I'm not his third choice. He is such a good person. Almost everyone in his life has disappointed or hurt him in some way. I have spent the past three years completely loyal and doing everything in my power to make him happy, including putting aside my own happiness for him. We still talk daily because we are also best friends. My mom wants me to not talk to him anymore so I can move on but I can see how hurt she is too. Both of our families are hurt and doesn't agree with what he did. I love him so much and don't know what to do. Please help me