I [26F] am being strung along by M25 and can’t let go

Early January I (26F) matched with a guy (25M) on a dating app. I don’t have much experience with dating/guys at all. 2 dates several years ago where I got ghosted, then a hookup in November, and this guy.

We spoke for a few weeks, made it clear I didn’t want a one and gone situation but was relatively open to casual. He came around and we slept together a few times that night. We’ve messaged everyday since. He tells me he really enjoyed my company, definitely wants to see me again, and all those typical sentiments. We planned a second meet, he had to cancel, then I had to cancel, then he cancelled again. His message stays the same, we still message daily - some days more than others.

We talk on Snapchat, I see his snapchat score can go up 20-50 before he opens mine some days, but he always replies. Even if it’s just a selfie. He asks how my day is most days. I can see I’m his 2nd best friend on Snapchat, even when we don’t talk for some days but his score has gone up around 200 in those quiet days.

I’m confident I’m being strung along for the ride. I enjoy talking to him when we do talk, I absolutely would happily sleep with him again, and as a person I reply to all messages quickly. I’m not someone who ghosts people, so I always reply, so will be chasing the carrot for however long.

Why might he be stringing me along?

How can I broach this feeling with him, without him repeating he enjoys my company and definitely wants to see me again?