Your two moon signs are completely opposite to each other in Opposition(180 deg ).
This relationship may be extremely good, or it may be a disaster. When you are getting along, it may be great, however, if you it is going bad nothing could be worse.
One of you may feel like you have to please the other, however this may be the sign of an imbalance in the relationship so take extra care to watch out for this in this relationship. Your Moon signs indicate that you are only slightly compatible.
Aries is a Moon sign of high spirits and independent fire, whereas Libra is a Moon sign of balance and indecision. The Libra Moon seeks to please everyone. Together the two of you get along ok.