She knows we can't be online 24/7. She knows we get busy at times and we can't reply fast to to her messages. She knows we have some other priorities in life and she has to wait after we're done with our business.
But what makes her sad is when she knows we are online and we can't even find a time to ask her "How's your day?". It pains her heart to see us posting, liking other photos on Instagram and can't even find a time to reply to her messages.