Hmmm...if he is feeling pressure from you, there are stresses going on.
I LOVE getting dirty tex messages from my wife!!!
However, he probably read it at the wrong time OR he has deeper issues afoot.
Give him some space and let him know in a non-verbal way that you love him and that you are there for him. If this goes on for more than a few days, then he has bigger issues.
Try a massage, softer note, or an act of service that would impress him. People have different 'love languages' and perhaps verbal affirmations of your love isn't his thing.
Patience is another intangible expression of your love, so dish that out to him as much as he needs. But store some of those text messages for later! He may come around after you remove the stress from his head.