I plan on ghosting someone.
Why even do that to someone?
I don't feel like I can be real with them anymore.
It can be tempting to ghost someone to avoid an awkward confrontation, but the more mature thing would be to be direct with them. If you don't feel like you can be yourself with someone, then explain that to them and decide whether you want to part ways. If you disappear without explaining why, the other person will be confused and may be hurt.
I'll take the shortcut route
It's never easy to tell someone the truth and hurt them in the process. But being honest will bring closure to that person.