This: "didn't want her to go but I didn't want to say anything because I didn't want her to think I was jealous "

and this: "as posted videos on her social media of one of these male strippers grinding against her"

If woman is interested in you, then she will respect you. Women love with respect and learning to love, men love with love and learning to respect - one old saying. BUT, boundries need to be discussed.

You need to understand that women are hypergamous in nature, you can do everything right and it won’t stop her from looking for someone better while she is in her prime.

That being said, this sounds more like a shit test, because I highly doubt some random stripper has higher SMV than you. If you overreact she will think you are insecure, so play it cool.

If you have lost interest in her at this point you should leave or downgrade her to a plate

if you were against her going to the strip club, you should've brought it up - it doesn't matter if you look jealous or not; you believe her attending the show is trashy behavior, and you should not tolerate trashy behavior. if at that point she had chosen the show over you, then you'd (both) know where you stand in this relationship. since you didn't tell her how you really felt about it, she can't be blamed and you can hold this L. otherwise, of course any male, that is not you, rubbing his junk against your partner should make your blood boil.

tldr: set boundaries

edit: might be a good idea to end this relationship, as she might not respect you (as much) anymore; just know it's kind of your fault. but make this a learning experience for your next relationship.

Dump Her

do you honestly expect this behavior to get better or worse over time?

However she went on a girls night to see a male strip show I didn't want her to go but I didn't want to say

You should have expressed your displeasure over it, but even if you had, the fact that she wanted to go is a bad sign. It doesn't matter whether you had given boundary or not because the desire itself is inherently a red flag. It would be preferable to have a chick that is disgusted by such places

But since you didn't give your boundaries and she didn't think there was anything wrong with her behavior, the silver lining is that you got to see her true colors. Had you given your boundaries she may have gone anyway and not posted it.

So in the end, she gifted you absolute transparency that she was a horrible prospect. So it worked out in your favor despite the fact you should have said something

makes me feel sick and my blood boils

As it should. This is disgusting and there is a reason your evolutionary senses are screaming at you to be revulsed by it

Do NOT ignore your reflex to it. There is a very good reason the male body developed such a strong disgust mechanism, you have it for a reason to avoid high risk mating decisions

Am I over reacting?

Hell no, dump her.

Is worth Dumping her ass and giving up the good thing we have going?

good thing we have going

Okay, here's the thing man. You never had a good thing going with her, from a relationship standpoint. She's a fucking hoe in principle.

Good thing going for a submissive fuckbuddy? Yeah sure absolutely she's a good lay

Recreational use only man. She is good for drilling, not for commitment

Did I lose frame somewhere in the relationship but then why is her interest so high?

No. You can't turn a hoe into a housewife

If I should dump her what is the best way to go about it?

It doesn't really matter just keep fucking her recreationally while seeing other chicks and spinning plates

Or if you absolutely intent on dropping her and being cordial about it here's a message:

"Hey [her name] upon thinking about it, I just don't believe I see us having a future. Seeing the stripper video you posted (and not knowing what else happened past that) made me realize our ideals for a relationship are incompatible and this wasn't the vibe I was looking for for something long term. I don't see this getting better or reconcilable.

I would prefer to not keep hard feelings from this, so thank you for the memories and the time spent. It was enjoyable while it lasted, I wish you well"

Obviously you don't have to send this. She was disgusting. This is a good frame cordial ending to something if you prefer to go out on top while being amicable about it.

Rightfully though, you could simply say you're done and that the video just turned you off pretty badly. Say as much or as little as you would like, I'm not saying this is the best message, just an option

She's for the streets. Zero LTR potential. I'm guessing she went on reddit and asked other women how to get you to commit and this is what they came up with, which would explain her not hiding it, posting on instagram. Either that or she wants to break up but have you initiate it.