Messages That Says Are Sent By Me, But Aren't (On Cell Phone.
 

So I'm texting someone, and then I check my messages and it tells me that I said

"Who r u texting"

It clearly states that I sent it to them. I read it, from my phone, and the person I was texting also read it on their phone just like I Sent it.

There was also another message, but point proven. Has anyone ever experienced something like this before?

Been installing apps with sms permissions?