How can I better handle retroactive jealousy in my relationship?
Hi there, I am glad that you reached out.
When you enter into a relationship of any kind, there will always be differences of opinion and also a different "lens" to how you each respectively see the world. This is normal and ok. We all come from different backgrounds and see things differently and so if your partner does not see things the way you do, there is no reason that you should try and "fix" that or try to change each other's perspectives. I am not sure if the way he sees things makes you nervous because if he sees things differently than you when it comes to relationships, that might make you nervous about his judgment in general or how he will conduct himself going forward.
I would begin to work on aspects of yourself that may attempt to control your environment or those around you so that you feel at ease. This is often a reflection of someone who experiences very predictable or very unpredictable behaviors from childhood caregivers. I would begin to process some of that, if that is the case, and work to understand why a differing perspective makes you nervous and go from there.
Also, because this is your first time in a serious relationship, you may feel scared or nervous that you don't quite understand how relationships work and/or your partner may leave you or cheat on you if you do not behave in ways that his past partners did. Again, that is totally normal to feel that way. The question that you have to make sure you keep coming back to is, is there any objective proof to what I'm afraid of? If not, then it is based on the way in which you are viewing the issue. It's old stuff, old thought patterns or fears and working with yourself to understand those fears and where they come from is first. Then, learning to sit with them and not run from them or externalize them (eg, my partner must be cheating because I feel scared right now) is next.
A therapist can also help you to navigate these issues and I would recommend reaching out to one if you feel stuck. All the best!