"To establish a relationship" means to form a connection or bond with someone or something. It implies creating a connection on an emotional, social, or professional level. Full definition
Did having all that luxury retail experience help you with establishing relationships with fashion houses when you started styling? (fashionista.com)
So cougar dating now became a revolutionary approach towards establishing a relationship between men and women. (seekingcougar.com)
In fact, more importantly it is about establishing a relationship of trust and mutual respect, by identifying and responding to the feelings and emotions of all members of your family. (the-positive-parenting-centre.com)