You made her laugh a lot and demonstrated you have shared interests. I think the reason she wasn't too into you was because you didn't make her qualify herself to you, while you told her several times why you liked her. If you teased and challenged her more, she may have been more enthusiastic about you.
Another mistake was not asking for her number after agreeing to meeting up. With dating apps, especially Coffee Meets Bagel (since conversations expire), it's important to get the phone number in case they delete the app or turn off their notifications.