I met this dude once a month ago and we’ve been talking pretty frequently since then. He told me he misses me and I said “Thanks lol” he basically gets pissed off and says that I should’ve said “I missed you too” he then says he’s mad and doesn’t want to talk right now. I was kind of shocked cause it was a pretty lighthearted conversion until then.. He also just messaged me and I didn’t open it. How do I establish boundaries with him now because his behavior seems a little off? Also do you think I was in the wrong here? I genuinely don’t miss him and I didn’t want to lie..

Edit: You guys were right, he went fucking bananas ! I wish I could send screenshots but it’s through snapchat..