It was good up until the point you said you're not going to contact her until Thursday. Talk about crossed signals.

You start off appearing as this open and spontaneous guy, and then you hold off continuing the conversation with her (as well as missing out on some pre-D2 text escalation).

Spin it around. A girl starts chatting to you, you give her your number and then you don't hear from her for days. Guarantee that you'll think "fuck her then" and mentally move on. We've all been there.

My thought on the matter is don't play games or be a douche, if you like the girl, just text her