he just disappeared (27f, 24m)

i’m 27f he’s 24m im american he’s swedish. we met on twitter, we fell hard fast - talking of a future together like me relocating to sweden. we talked every single day! for context about twitter: i can tell he uses twitter as a private social media that is not tied to his real identity. but we of course both shared who we really are and followed each other on other forms of social media like tik tok and letterboxd. well 5 days ago he just stops responding. matter fact he fell off the face of the earth across the board. on all social media it’s radio silence, he’s not opening my messages (reads are on), etc. no he doesn’t have some secret gf at home and if he did - wouldn’t he block me???? im worried.. worried sick. i dont want him to be dead or have gone missing. he’s the type to express if he didnt want to talk to me anymore. im lost bc his twitter is clearly an online diary i just so happened to meet him on… id hate to do something insane like find his family on facebook and reach out to see if he’s okay and it blow up on me somehow (ive constructed multiple scenarios in my head). and i would hate to reach out to his twitter friends to ask if they’ve heard from him incase they haven’t and start asking for personal private information that pertains to his real life. what would yall do? i feel helpless rn bc im literally in fucking america lol and he’s in sweden. pls send suggestions and i can give more context if needed i wanted to keep this short so ppl will actually read.