I disagree that you can't love two people equally. You can't love two people the SAME, but you can love more than one person.
Without any more details, I am not sure what to suggest. The easy suggestion is to concentrate on your boyfriend and ignore the other guy. But if you are all young, maybe there is no need to be involved in a serious committed relationship. Perhaps you can casually date them both. If you provide a bit more information, your responses will be a little more detailed, I believe.
Good luck.
Brought to you by Dating With Devon!