B2/K visa travelling alot

[Paula]

I currently have a B2 Visa and have been travelling in and out the US alot visiting my Fiance. On my last entry I was told I had used it too much and probably wouldn't be allowed in next time. It was because I had spent several months in the US and would be considered living here. The problem is I travel as part of my work. I need to exit for Europe in June, returning August, and marry in October. Two weeks later I need to go to Europe again for a short meeting for my job. If I get a K visa an adjustment in status in California is taking 8 months, travel parole 3 months.
Do you have any suggestions how to achieve this? Will I be able to get back into the US if I go to Europe shortly after the wedding?
Many thanks for any help