now:has a rule in company/intertainment to have a girlfriend?

Er.. are bạn asking if they're allowed to have a girlfriend? Because I've heard of a company placing a dating ban on a group, but idols have been known to ngày secretly to try and avoid scandal. Like Jonghyun and that actress chick, SM denied they were dating at first but eventually they had to xác nhận it and a big Scandal happened.. and now Baekhyun and Taeyon.. but as far as I know, technically they're free to ngày whoever they choose, though no one in SHINee appears to have a girlfriend as of today.
I don't know if that made sense hoặc if that was your question, but hope it helped some.