Initiates texts and takes forever to respond?

I've been seeing a guy casually that I've known through a gaming group for months. Our relationship started when we both developed crushes on eachother and he texted me out of the blue. We chatted for hours the first week, had a lot in common, and things quickly turned sexual. Neither of us like talking on the phone so most of our communications are via text. We've been on 3 dates so far in the past 2 weeks and slept together from the beginning because I felt comfortable and figured- sexual needs come first. If a relationship comes out if it, great. If not, at least its fun. Last week he did sweet things like make me a playlist before a trip and help me move. That was after 2 dates. Friday I slept over for the first time and he took me out for breakfast. He was very sweet and affectionate and repeated how much he loved sleeping next to me. He always texts me good morning and goodnight and asks me about my day. Then I noticed a change yesterday. He initiated a text asking about my day and wrote a normal response. When I tried to continue the conversation, he gave one word replies and stopped responding. I wrote goodnight and an hour later he wrote a sweet message saying he was falling asleep thinking about holding me. Today he wrote good morning, we had a sexy chat reminiscing about Friday night. He repeated how much he enjoyed the sleepover and breakfast. I realized something was off when I wrote a sweet message back that warranted a response and he didn't respond for 3 hrs. He was chatting occasionally on the group chat we're both part of so I know he wasn't busy with work He did this multiple times today: initiated with a teasing text or as if to start a convo, then did not respond till 3-4 hours later. This is unlike him because he never took more than 30 min till today. I dont get it. Why initiate a conversation then? Does it sound like a sudden loss of interest and do you have tips on gaining it back?
Initiates texts and takes forever to respond?
Post Opinion