I've read that staring at white can harm the retina. Might be a tale or may be true. I'll ask my eye doc next time I'm there.
Nadine Jessie appears to be the ideal purple for my garden; time will tell.
You are not alone with the woes white blooms gives you. They do go fine with some/most lavenders.
Now I've progressed to working on my River's Dahlias order and it's almost complete.