Should I end this friendship?

So I have a friend that was once a co worker. Me and her used to be the best of friends. Me and her stopped working together , she started a business and I went somewhere else. I have bought from her business before, but I feel like we aren’t close friends anymore because I don’t really buy from her business that often. I feel like I have to constantly validate her business in order to keep the friendship going, when in reality I’m not the biggest fan of her business just because it’s a make up company and I don’t wear make up all that often, but I have bought products from her before to be a good friend. Advice?
Should I end this friendship?
Post Opinion