Phenotype screens off genotype, as the genetic saying goes. Infection reduces Openness? Well, do you have some reason to want to increase your Openness? (Are you also looking into acquiring some psilocybin, which might actually be cheaper than treatment if Morendil is generalizable about it taking 'months' ?)

Slower reactions - would that significantly improve your life? I'm a cat person so I may be infected, but I can't say I often think (outside of taekwondo) 'I wish I had 10% faster reflexes!'

The greater jealousy thing may be an issue.