Dear All,
Thank you so much for your advice, I really appreciate it!
I am replying very late, and it's because there very major developments in my case
And now I'm ready to share with you guys.
Also, for some reasons I couldn't see the later comments at that time, I just read them right now.
So, without knowing you, thank you.
The tips you all gave were very helpful, because they pointed out that I first needed to clarify for myself what I was looking for, and then taking the necessary steps.
What I did, eventually, was register on Pairs. It looked like a serious site, with real people. Of course, it's a mixed bag, but the overall experience was good, partly because of the filters and profile settings are safe there. Also, I found that it was worth taking the time answering the initial questions as much as I could, so it was easier to look for men with similar values, interests, hobbies, etc. (And it was a good language practice, too, as it's only in Japanese.)
And a month or so after registering, I met someone there, a Tokyo guy who worked in Europe before. We started messaging, and agreed to meet. It was very nice. And half a year later, we got married.
I'm sharing my story because it might help others in a similar situation.
And I recommend Pairs for anyone who is looking for a relationship, even for friendship it might be a good source. Who knows. Good experience.
Happy Valentine, everyone!
Cheers!