How to get my crush with ADHD and Autism to open up?

So here’s the backstory summed up in a nutshell…I met a guy online, we became good friends, then we developed a crush on each other. I asked him if he had a crush on me and he said he did. I asked if he had more than a little crush and if he wanted to be with me and he said he did. We talked naughty and flirted with each other and my feelings grew and pretty sure his did too. We finally met in person on a trip and had a blast together hanging out for almost a week and spent a LOT of time together (basically once we woke up until we got tired) but the most we did was hug. He’s really shy and I am too. I feel like he got scared tho of his feelings for me and of my feelings for him. I decided to casually ask a while back if he still liked me and I did this in our texts by multiple choice question so all he had to do was answer A or B, to let me know if he still liked me and wanted to be with me. He responded with the answer saying that yes he did still like me. That was back in June and I’ve tried to get a read on how he feels lately but he just responds with things like “I don’t know how to respond”, “I’ve failed and fucked up all my relationships”, “all my exes found someone better than me”, “you deserve better than me” (because he’s really down on himself all the time, even tho I’ve made it very clear that I think he is awesome and told him all the many things I love about him and told him I love him…which I think scared him). He hasn’t directly said how he feels for a while. My heart tells me his feelings have grown and he’s just scared of messing things up and he doesn’t wanna hurt me. Also I kinda put myself in the friend zone so I didn’t freak him out further but now I regret that. Should I try asking him to reveal his feelings by using another multiple choice question so all he has to do is text an A or B type response? That way he doesn’t feel too pressured and can respond when he’s ready to. Is that helpful for someone with ADHD and Autism?
How to get my crush with ADHD and Autism to open up?
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