You'll end up not feeling much at all from the 2c-e, as 2c-e is an agonist at the 5-ht2a receptor (where the psychedelic magic happens), and ariprazole is an antagonist at the 5-ht2a receptor. The ariprazole will block the psychedelic effects. Don't take anti-psychotics with psychedelic drugs.
Not sure if there are any other interactions.