Hello whichever writer you are, just admit you can't come up with a reason for Marco not visiting first and choosing to move immediately without trying to go back & forth first.
Also, his friends, family, girlfriend, etc. are not a valid excuse to separate from Star if he's so shockingly fast to separate from them and give up other shit on top of that, like adventures, goals, progress in education & karate, his future, etc.>dumb kid
A biological (though developing) adult who'd be ready to have kids if in a tribe, and is noted by Glossaryck to have brains.
A 15 year old isn't 5 or 7. An 11 year old would visit first and go back & forth.>BUT HE LOVES STAR MAN
If the time was enough for Star to start getting over him so she doesn't know she loves her feelings for him as fact, then being compelled is not an acceptable reason.