What should I do?

Hi so I started talking to a guy online. He popped up to me and we got on really well, had a lot of flirtation but also we had a lot in common and similar values in life.
Then suddenly we started talking about food on a first date and he told me his and I replied and I got no response but he read it. I gave a follow up message a day later with something flirty related to it but got left on read. I'm not sure what to do. I thought we got on so well and I am terrible over message so that doesn't help but part of me is thinking maybe I should just be honest and say I'd like to get to know him better and ask for a phone/video call? I know that is his preferred method of communication also although we haven't gone down that route yet.
I just feel like this may make me seem really clingy and desperate but I'm not like this with other guys at all, the truth is, I felt a spark and I just want to explore that and I don't really have anything to lose. But I feel like if i'm honest with him, maybe he'd appreciate that idk. So I need help as I'm not sure what to do! Any advice would be great.