I'm actually fascinated by how emotionally vulnerable he is. There are two people he has been in love with, Nora and Jim, and in both cases he exploded at them in an impressive display of impotent, tearful rage. First Metokur made fun of him, and Ralph is a drunken emotional retard, alternately blubbering and ragepigging at Jim during their confrontation. Then he gets paranoid and when someone who might be associated with Nora makes fun of him, he preemptively ragepigs at his ex-wife on stream, despite no evidence she had anything to do with it. I'm sure he's crying every night while holding Nora's old dildo in his guntfolds.
That's why my favorite Gunt moments are whenever you can see his fragile fatty heart on display. When he talks how he would fuck Metokur and Milo on stream, every time you can hear his voice falter when Metokur tells him he's not his friend on old Killstreams (which was more than once), whenever he talks about Nora and it's obvious she was the only genuinely good, valuable person in his life. I bet Nora's silence is killing him, because if she ever spoke publicly against him, it would give him an actual reason to really hate her, but she just dropped him and went on with her life, and his ego can't take it.
Aside from that, his trip to Portugal is the gift that keeps on giving, even more than the sex tape. The moment he posted his busted face was amazing, 11/10, would watch again.