It's not unusual for one part of your Trinity to "show up" more often than the others, so it isn't something to worry about. Both Libra and Gemini are air signs, so you are a good communicator, and love to talk to others. You could also be a talented writer. Libra is a cardinal leadership sign, so Libras are like the iron hand in the velvet glove. You sweetly like to get your way. But you need your life to feel balanced, and since Libra is ruled by Venus, you like your relationships to be peaceful if possible. Now, Libra rules the marriage house, so you do prefer to do things in partnerships, work, play, and especially you feel sad without a partner.
The Moon rules your emotional life. Geminis are ruled more by their head, and you can confuse potential lovers. You are a flirt and are hard to pin down. You need simulation in a relationship, a meeting of the minds, and are playful in love. I do have an article Gemini Moon Sign Emotions on Exemplore.com so that you may find out more there. I am surprised you don't feel the effects of the Scorpio rising more, it's a strong sign. Are you reserved when you first meet others? Are you secretive and can you read people easily? The Scorpio and Libra should be what you feel more, but there's a lot more than a Trinity to an astrology chart. I hope that helps. Try to check out the article about your moon sign, I have written them for all Moon, Sun, Mercury, and Venus signs, and most of them are on Exemplore.com. A few are on Letterpile.com, as the main site here, Hubpages.com, split up a series or two. But they have more info than I can write here.