Guys..what is he thinking? short and easy pts! :)?

I've been talking to this guy for a month now over email (he's out of the country a lot this month) im 22 hes 30. Very respectful, funny guy. Met backpacking through india and were inseparable for about three weeks. We flirted but nothing happened, just got to know eachother. we have this funny joke about strip poker (I know, immature haha) and said I actually played the other day with a big group of friends. he thought it was funny, but then said something like" but what did you have to show them is what im worried about." Did he get mad? Protective? We're fine now, but just curious. Also, do you think he wants a serious relationship or a hook up? He's a flirty guy, but we've had many serious and deep conversations.