I have been feeling very upset and lonely but I can't tell my boyfriend nor my friends about it. [I Feel Lonely]

Due to the pandemic, my boyfriend has become homeless and unable to contact me as easily as before. We are also long-distance, which doesn't help matters. I have been feeling very alone and trapped and I have nowhere to turn to. I have been curling up at night just very sad and alone and pass out due to thinking myself to exhaustion. Last night was the worst when I just started crying and I couldn't breathe. I can't tell anyone and I am really exhausted. On top of that, I also have exams to study for in less than two weeks. Sometimes, when I'm alone at home and everyone has gone to bed, I just want to slip back to old habits and at least I have something to occupy my mind.