Another Meltdown

So I had a pretty bad meltdown yesturday while talking to Sam. I felt it coming, but still texted him. I know what caused it, my mom had me try a new method of b12 absorption. It didn't work.
But he stuck by me. When I get like that, all I want is answers. And when he gives me half answers it frustrated me even further. So I think he finally realized it, we talked it out, and I was ok.
I finally sent him an email explaing the b12, that I'm trying one more thing and ill warn him, and what he can do to help me. I ended with the fact that I still wanted to be with him, but I know he has a gf and won't sabatoge their relationship.
He has agreed to come to my hotel room to have tuna casserole, and he wants to watch walle.
But esp at the end of my meltdown he kept saying how he still wants to be my friend. And how he is holding his tongue bc he wants to be my friend. I also told him I really appreciated it.
I think my meltdown has to do with my near lunch thing with jeremy. He had to work so he cancelled. He isn't what I'm looking for at all. He's young and is having fun, but I'm over that phase and want someone who is too. Which Sam is.