I'm not in love, I'm just bored.
Why would you choose to be in a relationship if you are not in love?
Because it's the latest fad to do.
Boredom is really unbearable for you, it is something that is easy to figure out why but these are people's feelings you are messing with. Take care of her and treat her like you are in love, eventually you could feel really in love with her. You will be sorry if the relationship goes sour if you just seem bored all the time.
She was a tool to pass time, she is enjoying the fake romance... I hate being tied down.
You shouldn't string someone along in a relationship like that. You could really hurt her feelings.