They don't do it on purpose. Love makes us feel vulnerable. It's both a wonderful and terrible thing. We need that vulnerability to feel closer to someone. But it does make every hurt more personal.
The same reason people hurt themselves all the time. Habits are the end of honesty and compassion, the beginning of confusion. Lao Tzu
"Hurt" is twin of love...if you decided to love someone prepare yourself to get hurt..... you're still lucky because you can still feel pain and hurt...it's the worst thing if you feel numb at all....
More likely unintentional. The best you can do is move on with a sincere apology...life will keep moving.
because alot of times i just think so many people hurt the ones they love on purpose - they whine and complain about different things that **** them off about their family members but sometimes it is accidental
because they're not particularly invested in anyone else