Using Aura of Decay with the Blood Font and Respite nodes should increase my physical resistance. Activating Aura of Decay is showing LESS physical resistance in the character screen. But then unspeccing these nodes FURTHER decreases my physical resistance. Having these nodes selected but having the aura turned off gives me the most physical resist. I have no idea what is happening here.
You have the Fume Weaver node allocated (left side), which gives you -1% Poison Resistance per INT.
Because you converted anything Poison Resistance related to Physical Resistance related with the Blood Font node, it now reduces your Physical Resistance instead.