You have suffered a sexual and emotional abuse which causes similar trauma as other sexual and emotional abuse.
The ambiguity of it all makes it difficult to process as your abuser sits right next to you most likely, as in your case you didn’t leave, and there’s no protection you can apply to unlike other abuses so you are abandoned to your own devices.
The scars this family of abuse leave are similar, yours is tricky for the victim for you are like in in other sexual abuses, completely dehumanized reduced as a tool for his validation high, so he can feel powerful. At the same time the threat is not coming from the outside world, where one usually can expect threats to come from, but from your inner world, the closest person to your true self in your life.
So you have nowhere to hide, no safe place to heal from your wounds, because your safest place is the place of your abuse.
Mind that it’s also deeply humiliating and likely destroying your own self worth until you can process that’s not you the cause of the abuse, it’s him and he is the villain.
When humans get hit so hard by traumatic experiences we can respond in different ways.
The healthy ones are usually about protecting yourself from the abuser, either leaving or confronting and setting boundaries. But our nervous system shatters with this kind of intimate abuse, so it can also respond in weird unhealthy ways.
Sometimes people become abusers themselves (cheaters) and sometimes they have sort of Stockholm syndrome like reactions like yours, becoming submissive and craving the abuser, which will inflict more abuse since he’s broken in self worth and craves validation. This is probably the worst case scenario for the victim.
That is dysfunctional and toxic you probably figured it out already, but is not that’s something is wrong with you, it’s that something was broken in you by your abuser, and your survival instinct short circuited trying to re establish your safety by submitting your sexual and emotional abuser.
Which right now, is a piece of shit, mind you. I don’t excuse this wimp in the slightest, he deserves the five folded fingers timestamp right in his teeth to try the thrill taste of swallowing 32 shards of enamel layered dentine.
He chose to become an asshole at your own cost, because he is broken and this was easier to soothe his own low self worth and insecurities than facing his unresolved issues.
You pay the price.
It’s the attachment wound that causes you to lose yourself, and this reaction is sad but not unheard of.
The positive news is that you can heal from it, reclaim your agency, your self respect. And magically you will see him losing this manipulative magnetism that oppresses you right now, and very likely you will see him as a worm, repulsive rolling in the mud and dirt with his siblings.
Nothing exciting, more,likely you would either feel pity or you would feel disgust. Likely both.
Question is sister, what do you want in your life? Do you really want to live in infidelity or you want to reclaim your broken attachment? Your peace and center?
You have suffered one of the worst abuse a human being can experience in life, it temporarily change you because you are broken, but you can reclaim yourself once more and demand the respect you deserve.
Don’t let the pain stay unheard repressed inside, I feel like that’s eating you, there is no shame even if it feels like, the shame is all on him.
You need to not feel alone and have your emotions be heard.
You have been heard, and you are not alone.