Was my gf a gold digger ?

We went out for about a month and a half, coz I'm rich we always bought things like a bike, expensive clothes, jewellery etc. Then she calmly without any effort, dumped me and didn't give me a reason... I made all of the money myself so it's more annoying than if my parents were rich... But she left town apparently ( her friends told me, we got along really well now their not talkin to me ) iv never been used before but it's annoying... What should I do? She's not answering my calls