Anti-social?

Something that was always normal for me until I got married and was informed it wasn't was I could just be alone, not speak for days, and have no issue with it. When I was first married my wife had to bring my stepson down to visit his father every other weekend and to save money and ware on the vehicle she would stay with her parents for the weekend. While she was gone I wouldn't talk to anyone or have human contact for a day or so and be perfectly happy. There was a time I was living with my parents and went 6 days with zero human interaction and was perfectly content. I told my wife about it and she said it wasn't normal and people need human interaction. When I was told that and it made me think if there could be an issue with me or if I just enjoy complete solitude.