Boyfriend trouble 😞

So girls, ik for a fact that my boyfriend loves me allooooott. We're in long distance, and he travels to my city to see me once in a while like every 2-2.5 mnths and they way he treats me then speaks abt his love for itself. Bt there are times when he's away that he doesn't give me as much time as I'd want him to. I text him and sometimes he'd leave me on read and then rply some time later (or might not even if what I said/sent isn't too imp, like a meme).

In all this time (we've been together for a year now) I've kind of made my peace with the fact that I he won't always be available for me but I still feel bad sometimes. He has a job that is still in it's initial stages so the work pressure is too much + his roommate just moved out so he recently started living alone for the first ti ever..he's quite busy, I understand, and he talks to me whenever he feels like it, but what about the times when I feel like it? What abt those times when I'm talking abt something imp, and he suddenly stops replying to my texts

Am I thinking too much??.. Should I do something abt it, or should I just respect his work schedule??

Btw, 'talking to him' doesn't work..I've tried it many times and he gets angry over it because I end up using the wrong words and wrong language, as if I'm doubting his love even if I'm not, so now I'm afraid that using even the right words won't work anymore.