personality clash
out of character
pas de deux
misfit
baggage
out of one's league
on the wrong foot
co-vilification
egodystonic
crazymaking
quisquous
role conflict
discordance
psychoticism
mismeeting
antirequisite
anthropophobic
abnormal psychology
multiple personality
hermaphrodite
split personality
ideological barrier
embroilment
clash
Tweedledum and Tweedledee
friction
imbroglio
headmate
fakeship
aggression
sejunction
alchemy
interpersonal chemistry
at cross-purposes
negativism
unedifying
incompatibleness
heterophyly
obsessive-compulsive personality disorder
chemistry
inscrutable
have it both ways
buttface
unpersonality
have someone there
indiscernibility
false consciousness
race mixer
mindfucker
somatotonic
fissure
it's what's inside that counts
closed book
personal relationship
divalence
personal relation
butthead
depersonalization
maladaptive
bogart
tough nut to crack
autist
undiplomatic
bad apple
cultural script
heterotropic
something is rotten in the state of Denmark
mascot
multipersonality
dialectic
chaos
topsy-turvyness
familiarity breeds contempt
comparison is the thief of joy
bedlam
snarler
genderbending
gendervague
ingratiating
neurogender
cross wires
unlike
stereotype tax
topsy-turvydom
geebag
pandemonium
paradox
passive-aggressive personality disorder
confusability
nonadherent
sociation
inimicality
disassortativeness
Machiavellianism
mind game
gay bob
disindividualization
fence-sitting