It is unusual the way you describe this. Normally the start to interpreting an astrology chart is to explain the Trinity, Sun, Moon, and Ascendant to someone. So you should be exhibiting many Capricorn traits. Even though Leos are sunny and a force to reckon with, having two-thirds of your trinity in Capricorn will make you seem reserved and cautious to those you first meet. The Moon in Capricorn means you are romantic but don't show it publicly. You want a permanent partner and start a relationship hoping it will lead to a long-term one.
The Leo in you means you crave attention and are a bit high maintenance. You are a generous friend and a good host. But this is three little clues about your astrology chart. You could have a stellium (3 or more) planets in Cancer or Virgo, the signs before and after your Sun, and that would change the dynamics of your natal chart.
It could also mean you don't have the Moon in Capricorn; you may have looked it up in a poorly sourced site. If you go to the beginning of the article, click the link, and you can check to see if you have the wrong astrology sign for your Moon sign. The Moon moves fast, and you need a book called an ephemeris to see what sign and degree a person's Moon is at birth. It's based more on your time of birth. Try my link and see if you get Capricorn.