My husband lacks personality
For starters my husband and I got married very quickly and very young. I am well aware we should not have done this, but a bit late for that now. We are both early twenties and have no kids but two dogs and a house. We have now been together for a bit over 2 years and married for a year and a half (yes I know it was quick). I had a nasty break up before him and was still attempting at healing when we initially got together. He would always just sit and listen to me talk about whatever I needed. We always had a really good time hanging out with friends or just one on one, it truly seemed like he enjoyed himself back then and that side of him was what made me fall in love. It seemed great and I truly didn't see any issues until we were forced to go long distance. That's when I started notice this man is very nonchalant, like very. Annoying disinterested in everything. He doesn't know how to keep a conversation going, or how to try and get to know me. I am a very bubbly and outgoing person, while he is very introverted and quiet. It has been a big issue in our marriage since I need a deeper connection with someone, especially my partner. He doesn't bother asking me any questions about my past or trying to get to know me better than what he already knows or what I tell him and he is perfectly content. I have tried asking him time after time about his past but he says it isn't who he is now so why should it matter? Even after expressing how I feel he always just stays in his monotone voice and never has much to say about. One of his favorite expressions is "idk" about any conversation I start with this man. If I ask him a question in an argument that requires any bit of thinking he needs literal hours to come up with a response. This has been driving me crazy living with someone who just seems like an NPC. I have suggested we get into marriage counseling, we just haven't had the time yet. I don't know what more I can do as I have brought this up many times and nothing has really worked. I would like some advice about literally anything on what we can do to that might help us. I have even wondered if it's just who he is, why try to change him, but I need someone more than that. I don't want to go to divorce, I want to work it out but I need help. Oh he has also told he since the beginning of our relationship that if we broke up he would leave and never look back (he was cheated on previously and my old relationship was very on and off so I thought this was a healthy response), he has said the same thing while in the marriage also. It seemed harmless at first but I understand why now, he isn't connected enough to even miss me.
tl;dr
Our marriage happened very quickly, which led to me not seeing how nonchalant my husband it. It has caused many issues in our marriage as it seems he has no interest in getting to know me or allowing me to know him better. I don't want to go straight to a divorce, so I have suggested we go to marriage counseling. I the mean time I am trying to see what others think about the situation and maybe give some pointers on what to do.