Most Helpful Girl
She probably does hate you right now. It makes it easier to get over you.
Commitment means different things to different people. To a few people, no commitment means no marriage.
It seems like your wording could have been more clear.
Did you tell her clearly that you guys are 'not exclusive' and that you WILL be seeing other girls no matter what, even when she said that she didn't want you to? If you did not answer after she said that, she thought that it meant that she somehow convinced you into giving her the silent 'yes, you won't see other ppl.' By the way, you should have said, "I'm going to date blah blah" in the beginning of the pursuit of the 2nd girl, just to be clear to her. That is way more clear cut than anything.
Please don't bother her. You're just making it difficult for her to get over you. I would be angry too if you kept asking.