Is this a sign from the stars?

My sis is torn between two guys. One is named Ares who's a nice guy. The other guy has a normal name. Her astrological sign used to be a Taurus, and because of the change in astrological signs, she's now an Aries. Is that a sign telling her to choose the guy named Ares? Now every time she looks at her horoscope, she thinks of the guy named Ares. Is the universe telling her something? Or should I tell her that it's all a coincidence? Is it a coincidence that the the astro signs changed at about the same time she was having her dilemma? For the astrological signs to change is a big thing.