doubts

My bf and i have been together for 9 months and he says im the love of his life. Im studying abroad and i'm not a citizen at the country im in. I currently work and thats the only option for me to stay in the country, my bf freaked out and said we should get married just for me to stay in the country, and i told him i was young and didnt get into a relationship with him for a visa, i also invited him to come with me, if i have to leave, but he said no. He has anxiety but doesnt do anything about it, so he had an anxiety attack because he thought he was losing me and told me that we should consider breaking up because he doesnt believe in long distance relationships. His problem is that he keeps thinking what im doing, who im with and thats a nightmare for him. What do i do? I dont know if i support him or if i take some pride and just move on for myself (i got really upset because he wouldnt even try). Does anyone have bfs with anxiety? How do you deal?