Open Question: Does she like me should i ask her out or is she being friendly?

I like these girl I have been talking to her for about 5 weeks:

I really don’t know if she likes me, I’m going to tell you lot some signs let me know if she likes me or not plz:

1. She always says hi first and smiles
2. We laugh
3. We talked before a lot but since a week she just said hi and how I’m doing.
4. She asked me for chocolate that was time ago.
5. She asked me to buy her ice cream
6. She ignored me
7. When I ignored her she got very very upset and took me to the side away from friends, wanted to know why I ignored her
8. I asked if she wants to hangout she said yes but I did not ask her again.

Just to make it clear we only talk at work, I don’t have her mobile number or Facebook etc.

Does she like me, should I ask her out or is she being friendly???

Open Question: Does she like me should i ask her out or is she being friendly?