Communication, as you may know already, can make or break a relationship. I cannot even begin to express the importance of open communication between couples. I do not feel you are over-reacting at all. Your feelings about his lack of interest and concern are VERY justified. For God’s sake, this is your life partner, not your room-mate. 
(and in his case, it seems he might show more concern for a room-mate) I see that he put in some effort to show concern when you guys were getting to know each other in the first 6 months, but the curtains have dropped post marriage and now you’re with someone that seems to care more about his social life than his wife. This is as wrong as it gets in my book and I would be very hurt also.
I hope you don’t mind me saying this, but i see more of a marriage arrangement between the two of you and not LOVE. When one loves another, the care and concern comes naturally/organically. You shouldn’t have to ask for it.
I’ve been married about the same time period as you, but i didn’t take the arranged route. I married my soul-mate and the love of my life (and believe me - it was no walk in the park with my family). Being a gemini, I value communication VERY highly and it was important for me to find someone that matches my personality in that respect.
Hubby and I talk very frequently…when i am at work, we exchange a lot of texts throughout the day…for example, asking how our morning/afternoon is going, sharing events from work, making plans for what we’ll be doing in the evening, telling each other how much we love one another or even sharing some spicy texts for that matter. :jano:
Granted that some days we don’t have as much to share. So, the frequency may not be as high, but we will still exchange a few messages just to let the other know that we’re thinking about em. When my day is finally over, I can’t wait to rush home to hubby and start chilling with him. I love that man!! We do have our differences, but we argue VERY little and i would attribute that to our open communication.
This isn’t something that can be brushed under the rug as it will not just go away on it’s own. Find the right time and moment to have a true heart-to-heart with your husband, where both of you can put ALL your cards on the table. Be very clear about your feelings. Have him understand that the two of you need to start becoming more involved in each other’s lives and it starts with the desire to include your partner and to share everything with em. Your husband perhaps needs to grow up and realize that he’s married now. Life changes after that you know?
He needs to begin including you in his social circle and if he can’t do that (in case he’s conservative), then his circle needs to change and both of you should associate with other married couples. And ummmm, show some love to your wife dude!! Geez, no woman should ever be feeling that she isn’t loved or cared for. He NEEDS to start showing you he cares and that doesn’t take A LOT. A simple text during the day can do that.
Changes need to start happening, girl. It’s your life. Unless you make the effort and bring hubby on board to change things, you may be living with this emptiness forever.
Best of luck to you. 
Keep us posted.
