Should I dump him?

I asked my boyfriend if I could talk to him tomorrow (we haven't spoken in 3 days, just texted nothings)... he replied "I don't know if i can do that my mom is in the hospital"
i replied "you can't hop out for 10 mins for a chat? I don't understand"

is it time to leave?

prior to this, he hadn't been replying to texts on time.

Should I dump him?
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