Texting/emailing can get you caught into a loop where you panic, send a message, T doesn't respond, so you panic even more, send another or worry about T's reaction etc. Been there, got the T-shirt.

Try and calm yourself down and trust that T will see you at your next session. He's not replying to your messages probably because he knows a)it won't help and b) it could esculate things because you're in a state where anything can be taken the wrong way. I know you don't mean to, but it's easy to mis-interpret anything when you're subconsciously expecting to be abandoned or rejected. T knows this, hence he is trying to help you in the best way he can as well as look after his own boundaries. T's need to take care of themselves and draw a line, this isn't a rejection of you but protecting the relationship between you.

Break the cycle, try and calm yourself internally with the knowledge that you will see T in session.