He says it's not, but I just think he doesn't know any better. This is Solis. The only reasons he can give that she is not his girlfriend is that, "Solis is a baby" and "I only kiss her in the daytime".
Look at this little cutie! I wonder where he learned that from. I think he needs a little sister!
I just think they're precious. Check out Trey's hand on her back.
Love her... even with the drool.
Conclusion: Trey's in love... with Solis.