Because the <a href="/wiki/Endlessly_Invigorating_Union" title="Endlessly Invigorating Union"><img alt="" src="/w/images/thumb/a/ac/Oddcouple2.png/20px-Oddcouple2.png" decoding="async" width="20" height="26" srcset="/w/images/thumb/a/ac/Oddcouple2.png/30px-Oddcouple2.png 1.5x, /w/images/thumb/a/ac/Oddcouple2.png/40px-Oddcouple2.png 2x" /></a> <a href="/wiki/Endlessly_Invigorating_Union" title="Endlessly Invigorating Union">Endlessly Invigorating Union</a>/<a href="/wiki/Philosophically_Perfect_Partnership" title="Philosophically Perfect Partnership"><img alt="" src="/w/images/thumb/4/46/Oddcouple.png/20px-Oddcouple.png" decoding="async" width="20" height="26" srcset="/w/images/thumb/4/46/Oddcouple.png/30px-Oddcouple.png 1.5x, /w/images/thumb/4/46/Oddcouple.png/40px-Oddcouple.png 2x" /></a> <a href="/wiki/Philosophically_Perfect_Partnership" title="Philosophically Perfect Partnership">Philosophically Perfect Partnership</a> give +2.
From Fallen London Wiki