My bicycle

My birthday is not until Dec, but my boyfriend decided to buy me a bicycle. He actually convinced me to buy it. We tried it out today and it's cool to actually have a bicycle. I went to do my grocery with it. Tomorrow, we are going to a town nearby, I will do the bicycling while he runs around the town. Now I'm worried that it will get stolen when I part it outside a shop. Moreover we have not enough space to part it in our apartment.