siqilist 

A slang used in Chinese English to reference someone who loves his girlfriend very much.

A: Hey I saw Ed and his gf last night, they're heading to Alaska for holiday
B: Oh really? Again? No kidding he's really a siqilist

siqilist by Aule August 12, 2017

Similistic 

an adjective describing a person or action that works to the benefit of all parties involved. From the Latin "simul" meaning together. An alternative to egoistic or altruistic.

John's similistic attitude made him a perfect arbitrator for Bill and Marry's divorce.

Similistic by GR8_VIII June 16, 2018