Hmmm, why do you think that they should fall in love with you just becuase you chatted to them. Firstly, you need to learn to respect a girl. Just because they have a conversation with you, doesnt mean they fancy you. Maybe your confidence is coming across as arrogancy.
Try to slip something in the convo that may suggest if they like you.
Once you get more comfortable around them, and not expect it, you will get loads of attention. Women can sense when a guy is desperate.
Its like the same old thing, 'when you have a girlfriend, you get loads of girls asking you out, but when you dont , you dont get anyone interested'.
Text the other girl again and put who you are in the text. if she doesnt reply back this time, then she isnt interested...