You need to resolve trauma Consult with me or any psychologist for therapy and counseling online

I gone through the problem. Relationships passed through different stage in life. You are in initial stage of relationship. In this stage such experience is common due to previous trauma. In  this stage emotions play a great roll, that's how trauma has lasting effect.  Best way to resolve this issue is discuss this trust issues with her ( and about your past traumatic experience as well as any type of current relationships with your ex), respect her thought and feeling, and don't be possessive or emotional. Focus on present and future not past. Time will test the stability of relationship.

This is Adjustment Disorder Probably.

Hi! I understand the predicament you are in. Emotional baggage from a previous failed relationship is quite common to be carried forward if not resolved effectively. My advice to you at this point is to look at your relationship from a third persons point of view, try to see if your actions in your current relationship are rational. These issues are usually tricky to handle, and you may consult a clinical psychologist or a psychiatrist for a short couple therapy or individual therapy to address your concerns in a safe place.

You are feeling rejected and cheated, betrayed at the same time.. There can be major loss of trust, when your partner is not transparent , hiding withholds basic facts and the process can be emotionally painful so pls Firstly verify facts try to talk about uncertainties you have in your mind before doubting her it can be mentally very draining for your partner to prove her loyalty to you and further damaging to your present relationship. Secondly the most important relationship you have is with yourself and the you need to get of the traumatic experiences in your life, the healing has to begin as your judgements and decisions can be clouded. Thirdly ... the girl you are referring as your ex- who had a boyfriend already and didn’t say yes to you and later came to you when you already have some one in your life, who is your present and to be frank you had no past with this so called “ex”.. you probably just desired her( not clear about that part so need more details to make a judgment) And lastly..I feel you should focus on yourself and your present girlfriend who you say you love her a lot and she loves you there shouldn’t be scope for any ex in your life

You are into Rigid Mindset because one of your Highest Belief, value and needs has been suppressed. Some Negative and Unresourseful Triggers is taking you to this Repetitive pattern of Thought and Behaviours.