Maybe it wouldn’t be? I think it’s okay to slow down and start responding to every other text. I know it feels weird and wrong, but reframe it to yourself as a kind, gentle signal. This way you don’t have to be embarrassed by broaching anything, in case he wasn’t thinking anything anyway, and he doesn’t have to be embarrassed by being shot down. He obviously knows you are very, very busy doing some hard emotional work right now. He can’t possibly expect texting to be your priority. I think staggering brief responses (“thank you!”) would help and be a really nice way to signal he isn’t, in fact, a priority. He did a wonderful thing when helping you out. He should feel great about that. But you don’t owe him.