I don't mean this solely as an insult, but DSP strikes me as the kind of guy who'd say his best friend was his mom in high school. Like, a lot of his younger, outside of school stories seem to involve doing things with her. At least the believable ones, I think at this point his LAN parties have been thoroughly debunked, but given how he behaves as an adult, I absolutely believe he went on scheduled hair appointments and waddled around the mall with his mom on the weekends.
What's extra sad/funny is, it's not like DSP is even that fond of his mom, and despite emulating a lot of her behavior and lifestyle choices, he arguably looks down on her and says far more negative things about her than he ever does positive.