Hey girl,
I know its hard to take advice that you truely rather not hear. Im a 26yr lesbian, and i have been through,around,under,in-between, well…
short and simple- i have felt more than the average 40yr old. And you know, personally, coming from my heart…let it be. Right now is the most important yrs in your life and there is plenty of fish in the sea, as people say. Continue to hang with her or them, but dont let your emotions take over if your really effected by the situation. You will realize even in the next couple of yrs how the little things in life that bother you so now…are really just stepping stones to your future. So trying to make this short and sweet as i am, just amagine and then know what you want later in life and strive and just make the best memories now as you take these steps in life. Believe me when i say, you have control of the situation by not allowin her to play with your heart and keep your doors open. and you two can have your cuddling and etc. on the side just as long as she is aware that you do have a swingin door and she can be excepting to the fact of another person being interested in you or vise-versa. Just allow NOBODY to play with your heart and you maintain control from it breaking. Good luck with the choices you make, always know with positive strength and a true heart 4 yourself- no one in life will risk the take.

Baselines are used as a Point of Reference to compare the rest of your data collected from an experiment.

EDIT:
So you can check the accuracy and/or precision of the data that you have collected. How else would you know if your data is good or whether its junk.