Everyone must have a connection with other people, it doesn't matter if the person is an introvert or extrovert. After some time even the most introverted person will feel the need to connect, at least to just talk with another human being. This is because we humans evolutionary are not solitary beings, there is strength in being a part of the pack. So don't allow your partner to distance you from your family.
Many entrepreneurs use this simple fact that humans work better when they are part of the team (pack) by forming mastermind groups - these are teams of people that think, rationalize and support each other while working on a problem that would be potentially impossible to solve for a single individual on its own. Because of all these evolutionary facts, isolation from other people (especially family members) can eventually lead to a feeling of worthlessness, loss of self-confidence, and even severe depression.