First of all we should know what’s the meaning of ignorance a person who is unaware of facts and unaware about something and in other words a person ignore and disregard important information are called ignorance !
HOW TO DEAL IF SOMEONE IGNORE YOU ?
Stay Calm !
Stay humble and take it easy never Show them that their behavior hurt you if you show them then they know your weak point! but sometimes might be good to show so always stay calm and peace never let anyone play with you.
Ignore them back!
If a person does not want to stay with you and continuously ignoring you without any reason so you should ignore them back.
Try to do what you love!
This is the best thing whenever you are feeling unwell try to do things that you love. for example, some people written a diary when they upset, some people feel good by self-talk, and some of them seeing motivational videos when they are upset always doing something to overcome negative thoughts!
Spend time with the people who care about you !
Give your time to those who care you love you and think about your goodness be independent with what you have because a dependent person spends their life on the base of what others think about him or her ! so be happy and love yourself.