Lewin and Ryuji: With these guys it really depends. Generally speaking, they have nothing against it, sometimes even encourage it but if it’s too much, they want you to notice that without flat out having to tell you all the time.
Renzou: that guy is here for that shit. you can’t be clingy enough with him, he’ll always want you to do more.
Lucifer: he absolutely hates it. he’s a busy guy and if you can’t stay alone for awhile without whining that you miss him, this relationship will have no future at all.