Complicated Ex?

Lauren • Comfort Inn.
So I've still had feelings for my ex for about 2 years... He was (and still is) my first love. He dumped me because he believed I cheated on him. But he now knows I didn't... And recently we started talking again. He sent me this. He's been telling me how he dreams of me and how we're made for each other and we have plans to meet up... I'm single but he has a girlfriend he's been with for a year now. But he calls her his "love" when he talks about her to me. And I'm so confused. I'd never want to be the "other woman" or be the girl he's cheating with but I can't help it... I care so much for him. What do I do?