Hello Friend, thank you for reaching out here for help. As you mentioned that you are recently married, I am assuming  yours may be an arranged marriage. Generally  bonding  for such  marriage  will take some time to understand each other. You shouldn't get into conclusion mode immediately . It's all about give and take to get the bonding started. You need to discuss among yourself on such problems during appropriate suitations and try to solve the problem yourself. The real reason for your worry may not be his introvert nature, it could be something else from him or even from your side . If you can't handle current suitation yourself, take some guidance   through your loved ones or take help of marriage counselors.

It's good that you are seeking help for the problems you are facing. Also sometimes sharing your problems can also relieve lot of stress. You should consult a psychiatrist online or in person for the mood symptoms you are facing and also can go for Marital therapy. Consult me online.

I suggest you to consult a psychologist for a better understanding about yourself and your marriage.