Take Care? What does this mean? Brush off?

I have been corresponding with this guy over a dating site. The first time we arranged to meet he canceled at the last minute (he had a cold) and I didn’t find out until I was where we were supposed to meet. So we got back in contact and met for drinks. It went really well, at least I thought, then walking back to catch a cab I talked about how I was irked last time we were supposed to meet he bailed at the last minute. We said our goodbye it was great to finally meet you, hugged, and then he said, “take care”. Is that a brush off? Who says that. I then emailed him the am and said “great to meet you. I don’t think I properly thanked you for the drinks so…thank you. And more importantly here is that link I was telling you about” that is it. No response today. What gives? Should I take the ‘take care’ as a total brush off?
Take Care? What does this mean? Brush off?
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