If you have had them for a while, it may just be a part of the pigmentation of your skin- medically, it's probably not anything to worry about. If it's the cosmetics you are concerned about, your best option is to go to a doctor to get more details on what the spots are caused by and get suggestions from them directly. All people do have spots here and there that are shaded a bit different or something similar- it's part of what makes us unique and that's a good thing! I'm guessing your boyfriend really doesn't care that they are there, or may even appreciate the spots as making you unique and that's why he hasn't said anything.