My first experience in poly was forced. I wanted to try to see what it was like and he scheduled a date without telling me, then forced me to deal with it after I had cried to him for four days saying I needed him that night and he went and had sex without a condom without talking to me about that. Is this normal? Am I wrong for being upset about it 5 months later?
If by “normal” you mean “within the bounds of decent and appropriate behavior,” no, what this person did was not normal at all. This is not how polyamory is meant to be practiced, and this is not a healthy introduction to polyamory.
If by “normal” you mean “common,” then yes, unfortunately, people being scumbags and trying to excuse their unacceptable behavior by calling it “polyamory” happens far more often than it should.
No one should ever put you in a situation where you feel “forced.” That is completely not okay, especially in the context of relationships, intimacy, or sexuality. What this guy did was absolutely atrocious and you have every right to feel upset.
You don’t say whether you are still involved with this guy. If you are, please sever those ties immediately. If he is the one making you feel like your emotions are “not normal,” please feel free to ignore his perspective.
If you feel like polyamory is not something you want to try engaging with again because your first experience with what-this-guy-said-was-poly was so terrible, that is completely fine. You don’t owe it to anyone - not this guy, not yourself, not the nebulous polyamorous community - to ‘get over’ this or to adjust your emotions based on what someone else thinks is “normal.”
Since you use the word “forced” twice in your message, and since you’re talking about issues around intimacy and sexuality, and since you’re concerned about how upset you feel in the wake of this experience, I’d strongly recommend talking to a therapist about this. You experienced a violation and you deserve help to work through how you’re feeling.