Finally meeting ex bf but he just hide all fb pics

Hello.
I had been in a 5 year relationship with my ex. The first three years were great even if they were long distance mostly. He lives in Japan. After I lost my job I decided to move to Japan to teach English and be close to him but as soon as he started working he became cruel to me due to depression. I thought it was finally getting better and then we had a small fight that exploded and he ghosted me for a while and said terrible things. We used to get along so well I just don’t understand.
I know this is not the person he really is. He is one of the people I love most in the world. Even after all this time I still feel I love him so much.

It’s been over 4 months since we broke up. I haven’t talked to him much in the last two months. I gave him a letter in September about how I felt but He keeps suddenly saying we are not a match because we have some different values.
I think our only conversations were about red leaves in Kyoto and migraines and about a question from the Japanese test I took.
He finally agreed to meet me on December 18th after he returns from his backpacking in Thailand, Malaysia, and Singapore…right before I go to the USA. I told him I was going back to the USA but didn’t mention if I was returning.

I noticed he has recently hid all our photos and the posts of us together even if they were not romantic.And he untagged himself from all photos with me using that fb process. 🙁 After all that is there even a chance for him to come back? I really want to make a good impression on the 18th and am not gonna message him until he messages me on that day. But I’m afraid I’ll mess up and talk about my feelings and make him run away. I want him to see me as someone he can have fun with again and who he wants to see. So that I rebuild whatever was broken.