Is he really serious?? LADIES PLEASE HELP

Alright so I’ve been going out on dates with this guy and we’ve been out on like 5/6 dates so far. And every single time he took me to these ultra fanciest restos in the city (but this is not very important because he’s rich) and he’s been all sweet and well mannered. Also he said the first thing he wants to achieve with me is an ultimate trust, so as a sign of trust he told me that we won’t have sex until we become exclusive. I thought everything was going great, until i found out he’s sometimes very hot and cold. Meaning- he would be all loved up and crazy about me when we’re physically tgt, but once the date was over he took so much time to reply to my texts etc etc. I was disappointed because i know this is a typical sign of a douchebag, putting in minimal efforts in keeping the girl around him. So after days of thinking i finally confronted him, telling him i cannot take the relationship seriously and my feelings for him are fading when i dont see him putting in effort in our communication. Than he told me he’s originally really bad at texting and also he hates texting and he’s like that to EVERYONE when it comes to texting. So i told him yeah ok but thats ur standard and if you cannot keep up with my standard i dont think the relationship will work etc etc. And from then on i could see him putting in a lot of effort to change, texting me much better and faster. But right now I’m SOOO puzzled on why he’s not asking me to be his gf. In the past he told me he’s been abused and exploited by exes before so he’s ultra careful with relationship and what he really wants to build is trust. I believed him at first, but it’s been quite long since we knew each other but he’s not going on to the next step which makes me doubt him whether he really wants to be serious or not. When i finally talked to him about how he feels about going exclusive, he asked me “But would you want it? In this period of time?” Amd i was like “uhh why not?” And he was like he thought i didnt want it because of how i confronted him about the texting thing a few days ago telling him my feelings are fading etc. So i was like “alright i was thinking of giving up on him because he’s been dragging this thing on for so long but lets continue talking about this on our next date” and he was like “thanks for not giving up on him and clarifying my stance /// and then ytd i posted on my IG story that I’ll do any dares of the first three DMs if my world cup team wins. He saw that story, but didn’t reply to it. And the next day he asked me what the dares were, so i told him that all three guys asked me to be their gf. (True story. But i also wanted to trigger him) and than he was like “oh i should have also used the dare..” and than i was thinking than why the fuck didn’t you use it ?? Why do u not reply to it fast enough and than tell me u regret not using it when it’s all over already??!

So at this point of time I’m seriously wondering if he’s playing me around, deceiving me that he’s all serious but never actually reaching up to the point that i want, OR he’s actually serious about me but he’s a chicken