I may have missed it though probably not.
We need your age to give you a reasonable opinion. Based on what you're saying, you sound extremely immature, even though your story intends to project an "adult" relationship.
she wont talk to me and treats me cold and ignores me when i call her name or try to bring her aside
She sounds like a female dog.
I wouldn't take that kind of abuse from any female, regardless of who she was or how I felt about her. Ask her directly
, assert yourself and ask what the problem is. If she dismisses the issue again, just tell her you enjoyed her company but that you're going to move on.
Forcing the issue is always bad, but I wouldn't take that kind of disrespect and you shouldn't either.
That's just my prerogative though. Some people are okay with being trampled on.