For those who seen the first Movie!
When I watched the first one, it was amazing and I think that the second one will be too. But at the end of the first movie, when Peter told Mary Jane that he wanted to be friends with her and she was sad about, then I screamed "YOU IDIOT" and then I realized why he did it: He wanted to protected her, so he decided that he couldn't have a relationship with her because of his other responsibilities. I think that MJ knew about it and decided to try moving on!