Yobs is referred to a person who has low sense of emotions towards his/her beloved.
yobs is an adjective used for a boyfried who does not pay to his girl, although the girl tries hard to attract her boyfriend´s attention.
Suppose Arvin is your boyfriend, he works with his phone all the time, but when his girlfriend texts him, he pays no fucking attention. In this situation, you could say:
"Arvin is YOBS".