Guy pays for your meal?

i and this guy just had lunch alone because nobody could come(We normally hang out in group)At the end, he paid for all even though I gave him my credit card. He refused it. The conversation was just casual. He said that I could treat him next time.Btw, this is the second time that he paid for me. The first time, I jokingly said to him that I didn't have money(because it was my way to refuse him politely). Finally I went with him and eventually, he paid for meal. Is it normal for guy friend to pay for you? I don't have many guy friends.
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i drove him to have lunch at his friend's restaurant and to get his car on that day. We just came back from the party at my friend's house.
Guy pays for your meal?
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