Geesh. I think I'm a bit like your guy. I do horribly when it comes to people telling me their feelings. I mean, I can love someone dearly, but I show it in ways (by doing things for people instead of telling them...hint, hint) that many people do not understand. It's such a refreshing feeling when someone gets that about me and appreciates it and understands it. If I were on the receiving end of the texts you speak of I would have a hard time responding because I wouldn't know what to say.
I'm a little better about it now after being chewed out few times, but it doesn't come naturally. Sometimes people need to be reassured about things, but I'm not really that way, and I tend to think others are that way too. I also tend to get grouchy and uncomfortable when I'm being pressured to talk about my feelings. I will shut down like a clam, or I might get mad. There is nothing wrong with me, it's just that I'm not a feeling type of person. It doesn't mean I don't have them, it just means I don't express them like a feeling sort of person would. I used to fight with my ex a lot because he liked to talk about feelings and I couldn't stand it. He didn't understand the way I showed love and affection, and the way he showed it made me uncomfortable. I remember when he told me after a brief break up that he felt empty inside. I just remember thinking, "What?! What are you talking about??"
My husband is very much the way I am. We tell each other I love you most days, but we don't get gushy over it. He's not telling me all of his feelings and I'm not telling him. If we have a fight and he brings home a tub of my favorite yogurt I know he's sorry and that's his way of saying it.
So with that being said, if I were you, I wouldn't send the email or go over the feelings again; believe me, he knows. Just let it go and move on. That will mean a lot. When everything blows over, then you tell him how you feel. Not right now. It will just make it worse.