It can be mild depression due to perception issues. It needs to be corrected asap otherwise it may get complicated. It can be well treated with counseling sessions and medication if required.

Hi You are in a relationship and you are happy. However you are feeling insecure and afraid that something negative will happen. You are certain that she is the most wonderful person you have come across but you are still feeling insecure. The negative thoughts you have is coming from past trauma where people have left you. A good way to feel better would be to cherish the relationship you are currently in and enjoy it. It will be good if you can gradually work on leaving past trauma behind. Once you don’t think of the past too much you will enjoy current relationship. A psychologist will guide you on how to not think about the past too much and enjoy current relationship. A psychologist will also guide you on how you can feel good about yourself.

Hi. You're seeing an association among girls you interacted in life. Let's face it. You need to undergo therapy sessions.

I’m sorry to hear that you feel this way. Your emotions are valid as you have had a past where someone rejected you. You need to work on building back your self-esteem. If you believe you are not good enough then you will subconsciously treat your partner in a way that she believes you aren’t good enough. This is called self fulfilling prophecy. To avoid getting into this cycle, try developing your skills and confidence.