Am I reading to much into this?

So a guy that I have been sleeping with for a while now (6-7 months) (sex is amazingly great) asked me to go out with his buddy and him to break the ice with me? He paid for my drinks. We hung out for like 6 hours with his friend which was a good time. Then he came back to my place. Is he slowly wanting more? Is he wanting to get to know me? Why would he invite me out of all people?
Am I reading to much into this?
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