Why does my boyfriend has to go somewhere whenever I talk to him about my concerns?

So I have seen a pattern for about 1.5 years that whenever I try to talk about sth important my boyfriend has to go somewhere like for cooking, for playing games , etc. I have observed this may be 5 times. I have even talked to him about this and he says it is what it is. Is it just coincidence or he doesn't care? What might be the deal?

Why does my boyfriend has to go somewhere whenever I talk to him about my concerns?
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