I was in a similar situation. My wife (USC) and I met and got engaged in Thailand. We got married while I was back in South Africa and I applied for a tourist visa to the US to visit her before coming back to work in Thailand. When I went for the B1 interview I told the CO that I was going to visit my wife and gave him my wedding certificate and also showed proof that I was going back to work in Thailand. I got my B1 visa and have visited the US twice in 2022, once via JFK and the second time through LAX. Both of my entries were smooth.
If she already has a visa then I don't think it will be an issue, assuming her record is pristine.
In regard to applying for a B1 while having an I130 processing, I think your profession, ties and straightforwardness play a large role. I told my CO from the start that I want to visit my wife for a month while we are processing our I130, my profession is also in education so I think they know that it is basically impossible to land a teaching job on a tourist visa. It might have also helped that I showed him my work contract to return to Thailand after my visit to the US.
Best of luck.
Dewald