Most Helpful Guy
If you don't know them well, then it's kind of weird. If I did know them, then no. It would be totally fine. I once trued to get back in touch with a friend I lost contact with. We were very close friends when we were 6 and then lost touch. I tried to get in contact with her via a mutual friend and we talked a little and I tried to get together just to talk, but she kept bailing on me so I gave up.