Can not having a b/f or g/f cause depression in teenagers?

Hi I am going to be a child psychologist and I was wondering in teenagers, can NOT having a boyfriend or girlfriend cause teenagers to become depressed. Thanks, I really appreciate it.Can not having a b/f or g/f cause depression in teenagers?
I don't really think so. I think it can cause temporary loneliness or feelings of being left out. Not serious depression though.Can not having a b/f or g/f cause depression in teenagers?
Yes.