... that can play a role:

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• there is no longer any trust

• one or both partners feel that they are not understood

• one or both partners feel unsupported

• Criticism or disappointment is no longer expressed

• a partner cheats

• there is disruptive external influences (e.g. family, in-laws, friends)

• because of the relationship, psychosomatic complaints arise

• important wishes of a partner are no longer addressed or taken into account

• one of the partners often criticizes the other or both often criticize each other

• Plans or goals for the common future differ widely 

• there are hardly any common interests

• the relationship is one-sided, that is, only one partner  determined about all relevant topics and activities

• either or both of them are seldom or never satisfied sexually

• the feeling prevails to "become a stranger"

• Disputes with mutual blame increased 

• one or both partners lack personal freedom

• a partner suffers from excessive jealousy 

• physical or emotional closeness is lacking

• there is dissatisfaction with the roles in the relationship

• there are doubts about the relationship and possibly even the intention to separate

• there is mistrust and insincerity in dealing with one another

• there is emotional blackmail

• there is an unexplained or unfulfilled desire to have children

• there are unsolvable conflicts

• Life crises such as illness, death, accidents, professional crises exist

• there are problems through or after parenthood