Don't ignore this red flag behavior in a relationship, social psychologist says: It could hurt your 'self-esteem and sense of self'

In her latest book, “Love by Design,” social psychologist Sara Nasserzadeh explains that there are six ingredients a romantic relationship needs to be able to last and thrive.

These ingredients include compassion, trust and a shared vision and they need to be present to give relationships “a chance to even survive,” she says. “Let alone thrive.”

Respect is also a key ingredient and a fundamental one, Nasserzadeh says. It helps build the base for how each partner behaves.

In fact, a lack of respect in a relationship is a major red flag. In the long run, it can “bash the whole self-esteem and sense of self of the other person,” Nasserzadeh says

Disrespect can show up in romantic relationships in a number of ways.