What should I do about this conversation I had?

This is a theological and philosophical discussion that your OCD is latching onto because you care about your religion. But I don’t know any religion that says it isn’t a choice since they all have to grab me with nonbelievers and converting as many people as possible, so yes it’s a choice.

For your OCD, it is better if you just sit with the uncertainty, whatever it is you are uncertain about. As for what a person believes (uncertainty included), they don't consciously choose it, their brain is simply convinced of it. If a person puts on pants then that person's brain will be convinced they are wearing pants. They can attempt to believe they aren't wearing pants all they want, but they will still know they are wearing pants. The most a person can consciously do to convince their brain of something is to choose what information their brain is exposed to. Whether their brain excepts that information as truth is out of their hands.

I agree that it is a person's choice to follow a religion. What I was referring to was something more like a deep down knowledge/belief that something is true. Something similar to how some atheists might mention that they wish they did believe in a God but don't (and we aren't talking about whether or not atheism is correct at the moment, this is just an example of the situation). This is despite the fact that they could decide to follow a theistic religion, but deep down, they wouldn't believe it. And, perhaps a better example, believing in the love of your parents. Maybe you want to believe that your parents love you, but deep down you don't feel that it is so, maybe for some reason or another. You can say, "I choose to believe that my parents love me," but by saying that can you really make yourself believe that statement? What I'm saying is this: to me, I see things in verses that give me a sense that maybe God loves Jews more. For example, in a passage Jesus referred to the Jews as the children and the Gentiles as dogs -- pet dogs that you would love, but still dogs (if you want to know the verse I can find it for you). Looking in the face of that fact, among others, I feel like God sees me just as He said -- a dog. All the verses that make me feel similarly down are overwhelming to me, like too much evidence to say that I really believe that God loves me the same. Yes, I could say, "God loves me just as much, and always has," but can I truly, reasonably believe it? This is a confusing topic for me, and it's hard to put what I mean into words, but I hope that made some sense