crush trouble

Ive been talking to my crush pretty much none stop for quite a while and we‘ve met up a few times with our other friends and acted a lil different than usual (resting so that our hands are touching, leaning on one another) nothing too major but it’s very different to how we usually act. Anyway he made a cute playlist with his favourite songs in and then made it joint (he calls it out playlist🥺) but recently he’s not been talking as much to me and sometimes just leaving me on seen and I’m wondering if I’ve done something or what I should say? if you have any questions or advise, please lmk