If you find that the written word fails to truly convey your emotions when you send messages by phone, then perhaps you should consider the PopKey app.
Instead of communicating through text, or emoji, PopKey is hoping to make the experience more fun by letting users send GIFs. With PopKey, GIFs are grouped together via searchable keywords like, 'lol,' yes, and happy, which you can then send as a message. Furthermore, PopKey will let you store your favorite GIFs so you can access them easier, as well as let you upload your own.
Unfortunately there's no word yet on when PopKey is expected to release on the Apple Store, however you can sign up on its website to get an alert when it does.