Help please: 75/1.8 instead of 35-100?

Tough decision.

After seeing a friend's images shot with the Canon 135/2 and a FF camera, I lust for the effect. This is pushing it with the 75/1.8, probably impossible with the 35-100/2.8

I enjoy shooting with the 45/1.8, but I find myself a bit imposing in candid situations. The 75 could be the lens for these situations.

I consider the 35-100, together with the 12-35, more like a pro kit for weddings. I can see these 2 lenses replacing many FF kits in pro situations.

--
My nickel, since the penny is being discontinued...
Jeff.