This is not the way to get depression treated. You need a doctor's care.
I guarantee that if you go there, there will be sex. If you are a virgin going there, you won't be when you return. He will overuse the word love
and repeat it 24/7 in order to get you to submit to him.
And then when you come home, he will marry this other woman.
You are his masturbatory fantasy. Sorry, but the headless nude shot should have been your first clue in that area. What, pray tell, exactly did you think that was for?
If you go there, that is what will happen. You will still be his plaything, except it will be in person. You know, where pregnancies and STDs can happen. And you will have few to no options if either or both of those things happen to you. You have no idea what his sexual history really is. You don't even know if you're the only girl he sexts. You probably aren't.
Do yourself a favor and interact with men who are a lot closer to home. And stop sending nudes; it puts you in a vulnerable, subordinate position that I predict you will eventually come to regret. You can do better, and screwing this guy in another country is not going to help with your depression. Seek a doctor for that, just as you would if you had a broken leg. This guy does not have a magic dick that will cure you.