Based off what you know about their sdule, pick a timeframe that you know they will be able to give you their undivided attention. Wait a few hours after they get home from work so they can calm down and de-stress from their day. Talk with your parents on the weekend during breakfast. They are more likely to be relaxed during this time and may be more willing to discuss, rather than dictate. Don't bring up the conversation too casually when they are in the middle of doing something, like getting ready for work or taking care of your sibling.
She had started morking there in the past few weeks. He has given me the silent treatment before for days so I was agin hurt and surprised.