[Josuke takes several long minutes to parse this reaction before he finally decides to reply again, only this time it's not text and it is private.]

Ken was one of the first people I met here. We've been friends a long time.

[Longer now than some of the very best friends he made back home, which is to say...Kaneki knows exactly the type of person Josuke is. Embarrassing shenanigans are in the description of being his friend.]

Whether he just makes new friends on these dates or finds someone he likes that likes him back...that's up to him. But he can't keep pushing people away. If you're real family, you should know he needs a push sometimes.

Leaving him to be on his own isn't going to help, it'll make him worse.