Post divorce dynamic

STBX and myself have been married for a little over five years, seven together. No children. Our relationship has had ups and downs, but he blindsided me with divorce over text message a month ago. I do not have a strong support system here because I am an immigrant. This has been the most painful, anxiety- triggering month in my life. We still live together because we have to sell the house, and we need to prepare for that. The first few days were very awkward, we weren’t talking much. We started talking more when the realtor -our friend- came to see the house. They are not deep conversations, but at least we’re amicable. However, it hurts me because the divorce wasn’t my decision. Today he texted me randomly about something that happened to him at work. Then, he came home and started talking about it…. I understand that he had time to process things before I even got to know about the divorce, but it hurts when I see him being able to put me in the roommate zone so quickly. Should I approach this with him, and if so, how?