Is the Google Pay, spying on my purchase habits?

Google spies on everything you do!

Obviously yes. Not only purchase habits but everything, including speaking normally. Try repeating (with hey google listening on your phone) a topic that you are completely unconnected to a 100 times during the day. Then see how the search results / google ads change!!

google is spy it is true i work for the Google company we collect your purchase habit and information and sell information to china DO NO TRUST THEM TRUST NO ONE NOT EVEN YOURSELF NOT TRUSTING YOURSELF[ IT IS NOT SAF E FOR US. the end is near

how did you work that out , your a genius ..  And guess what they sell the information too . its all legal read the fine print .

There are always good or bad in every thing we use in the world. When it comes to profit no one thinks about costumer nowadays. You can not trust anyone on internet.

When i get my basic from apl

It's not really spying; you're giving Google your information because you're using their services, and they're keeping track of it and using that data, which is all in the fine print of the EULA that nobody reads. 

Yes,  and I think you overpaid on that porn site.

Spying?  No.

You gave them direct access to the info.

Of course.  Everything you do on the Internet is "spied on."