physically go to a cancer who has retreated? LDR

i'm a Sagittarius woman and been in a long distance relationship with a Cancer for three years. the chemistry was instant and we visit often (california and the netherlands) i was planning to move there and he "built his entire life around me" from buying his house to taking over a company, but then i wasnt able to move! he did his normal disappearing act and cut off contact. we had minimal contact for 7months! i was heartbroken and literally felt i was dying and going crazy, its so cruel to just ignore somebody. every few weeks he'd send a text about how he'll never love another woman or something, so id keep that hope alive. well, just as i was getting over him and dating someone who genuinely had feelings for he comes back like a bull in a china shop and says that he tried to get over me but realized he couldnt. said he had decided to move to california even though he wouldnt be able to provide. that it wasnt about all of the stuff he built for us but about us being together. i was so resistant because im weary of his retreating again. we were back together for 2 months and we just had a big fight and hes disapeard again, only this time he unfriended me, stop following my ig, etc etc. i said a lot of things that would really hit a cancer's nerve.
here's my question: should i go to him? being in a different country its really easy to not pick up the phone, i feel like we need a face to face. so many times ive felt like he's testing me to see how deeply i really love him and have always said that its unconditional and have proven that as much as possible. im hearing that hes acting irrationally and drinking. losing his business is a real possibility. is this a cry for help?
how do i make this better? let him retreat, go to him, or move on and be free of this emotional rollercoaster?

bang him. It helps you know.