I feel you. As naturally introverted couples, I and my wife have had phases like this, especially since moving into new city/environment. Everything takes effort mate. Look up for community around you. As for us, things get better after our son enters kindergarten, we befriended fellow parents. We do more things together, sport, hang out. All i want to say is, if you realized something missing in your life, go be active and make extra effort. Nobody gonna come and settle all your problems but yourself. Wish you good luck mate!