Im looking for an app that can log an event such as= someone picks up my phone, sends a message, then deletes the message..can i use an app to record that or log that?
Welcome to Android Central! I agree strongly with VidJunky. If this is even remotely possible, you should have a strong screen lock set up. Someone using your phone to send messages shouldn't be your top priority -- I'd be more concerned about someone digging around for more sensitive data.
If the person you're worried about is a "friend," then my suggestion would be to find better friends.