Maturity is important for those who are in a continuing relationship, and a large part of it is being able to take responsibility for one’s own actions. Those who exhibit a lack of maturity often believe it is everyone else’s fault when things go wrong, and they refuse to accept the blame for their own actions. It does not matter what occurred, but it can backfire on them if their behavior continues. While a few incidents will make little difference in the long run, a continuation of their behavior over the years will eventually let their partner know they will not hold up their end of the relationship.
Living with someone who acts childish is difficult, and it can lead to many different problems in a relationship. If the two people have already moved in together or married, the more mature person will end up being responsible for taking care of paying the bills on time so utilities and services are not shut off. They might even find they are expected to be the one to hold a job and earn all the money necessary for financial stability, and it can turn them sour.
One of the more difficult aspects of living with an immature partner is their inability to be responsible when necessary, and it can lead to disagreements with others. If they promised to babysit a sibling’s children, they might forget or simply not show up. This type of behavior will lead people to expect their partner to pick up after them, and it can cause resentment. Even the most patient person might find it too difficult to stay with them.
Being faced with a partner who continues to have this type of attitude can be distressing, and it can cause rifts within the relationship. A person who must constantly pick up their pieces of their partner’s messes will certainly consider it time to move on if nothing improves.