to treat sb you know in an unfriendly way

to understand wrongly

a person you work with

to not understand a situation correctly

simple and easy to understand or do

to become ill

to have a friendly relationship with somebody

good and bad moments

someone who is willing to listen to your problems and give you sympathy, emotional support, and encouragement

to argue

to make something wider or larger

to make sb feel less sad

being a part of

feeling unhappy

a particular part or feature of something

a feeling of worry for someone or something

be in another person's situation, esp. when it is unpleasant or difficult

sometimes

an increase in your salary

to disappoint sb

feelings of being sorry for someone else's misfortune