I'm a romantic man. I would encourage you to keep seeing her even outside the shop. Even better if you could make it to her bedroom.
I did it twice in a regular's bedroom. There could be something special about it to let you into her private sanctuary. Her housemate who was also a ML told me she must have liked me a lot to let me do it. I eventually bedded her too in another shop she worked in.
Now if you fall in love with her and she with her I wish you both good luck.