Astrology in relationships

Do you believe hat astrology plays a big part in relationships/compatibility? I'm a Virgo, and my boyfriend is an Aquarius/Capricorn (his birth is January 20th, which according to so calenders is either an Aquarius or Capricorn) I was reading about his Aquarius sign and it said that they don't open up quickly or easily, and when it comes to expressing sentiments specifically "I love you" they will only say it when they absolutely mean it. We've been together almost a year now (March 30th) and he still hasn't said it. Do you guys think astrology is accurate/huge in relationships? Sorry if this doesn't make a whole lot of sense