Virgo and Sagittarius share a liking for order: Virgo looks after organization and detail; Sagittarius moves with confidence when the rules are clear. That can make agreements about how to do things easier.
The difference lies in the place the home holds. For Virgo, it can be a space of security where they can stay without discomfort. For Sagittarius, it is usually a rest stop from which they head back out into the world.
Virgo may join in some social activities but may lose interest if they see no professional, social or financial use in them. Sagittarius, on the other hand, enjoys movement and meeting people for the value of the experience.
Sharing what brings them closer and recognizing the interests each one wants to cultivate separately helps them avoid wearing insistence. Not every activity needs to become a joint project for there to be companionship.