Yes, it is absolutely okay to end a relationship if you're not happy in it. Your happiness and well-being are essential aspects of any relationship, and staying in a situation that consistently makes you unhappy or unfulfilled can have negative effects on your mental and emotional health.
Ending a relationship is a difficult decision and should not be taken lightly, especially if the relationship has been significant or long-term. It's essential to communicate openly with your partner about your feelings and concerns, and perhaps even try to work through the issues together with the help of counseling if both parties are willing.
However, if you have assessed the situation honestly and thoroughly and find that your needs are consistently not being met, or the relationship is unhealthy or toxic, it may be best to consider ending it. Prioritizing your own happiness and well-being is not selfish; it's an act of self-respect and self-care.
Remember that each relationship is unique, and only you can truly know what is best for your own situation. Surrounding yourself with supportive friends and family during this time can be helpful, and seeking professional advice from a therapist or counselor can also provide guidance and clarity. Ultimately, it's important to be honest with yourself and your partner and to make the decision that aligns with your values and long-term happiness.