Libras need relationships more than other signs...
Some signs are happy to play the field for a while, never really settling down. But Libras aren't apt to be alone for long.
For them, relationships and commitment are the goals, and finding the right partner might be a high priority in their lives. You just do better if you have a trustworthy partner who helps to balance out your moods.
But, the secret lies in not needing relationships too much, or making them such a focus that other parts of your life start to falter. You don't want to let friendships lag, or allow your work to suffer.
Make at least a little time most days for your love, friends, family, work and personal aims, and you'll feel much more integrated and whole.