texting girl i've never met?

okay, so I was just in a 2 year relationship where my ex just said she had no feelings for me anymore and left. well, my friend took my phone when I was a little inebriated, and friended a girl she knows on my fb. she started a convo with her and I ended up with it. Im not complaining, she is very beautiful, but it seems like I start the two conversations we've had (friended thursday night, talked into saturday morning, didn't hear from here so I asked her sunday night how her weekend was). We left off that we would make plans to get together for a drink or lunch next week, but its been two days so far and I'm just waiting for her to message me. She asks me all these intrinsic questions about my personality, hobbies, major, stuff like that (we go to the same college), and she immediately responds and sounds genuinely interested in our conversations. should I give her a couple more days then message her? has she gotten used to me starting the conversations? Im not sure what to do, it's been a while since i've been back in the game, and I've never done this sort of thing (messaging a girl I don't know) so any opinions would help! Thanks!