Your two moon signs are 120 degrees apart in a Trine angle.
There will usually be a great understanding and respect between the two of you in this relationship. Your Moon signs indicate that you are very compatible.
Sagittarius is a Moon sign of happy-go-lucky optimism, freedom, and friendship, whereas Leo is a Moon sign of charisma, popularity and warm-hearted generousity. Most likely the Sagittarius Moon will play the friend to the popularity seeking Leo Moon. Together the two of you get along just great. You each learn to value the other for the unique aspects that hold you dear to each other.