the term 'opposite attracts' is coined for a reason, when two similar people are bonded with chemistry, it can unwillingly cause an explosive reaction, that's physically and mentally harmful to both sides due to strong, obsessive bonds for one another
yet when opposite attracts, a subtle reaction is triggered with occasional sparks, and mixes to become the perfect formula we call love
Might sound common, but I've experienced explosion caused by similar attraction. Haven't liked anyone with opposite personality though.