Given the following context:  Writer David Lipsky is dismayed to hear about the suicide of novelist David Foster Wallace in 2008. He had interviewed the author over a period of days twelve years earlier, following the publication of Wallace's novel Infinite Jest, which received critical praise and became an international bestseller, a touchstone for numerous readers. He listens to the recordings he made during their time together. The film returns to the period shortly after the book's release. Although initially skeptical of the high praise Wallace's book is receiving, Lipsky – a writer having only marginal success – is awestruck after reading it. He persuades his editor at Rolling Stone magazine to give him an assignment to interview Wallace during his book tour. The journalist travels to meet Wallace at his home on the outskirts of Bloomington-Normal, Illinois (near Illinois State University where the author teaches writing). Lipsky finds the young author unassuming and amiable, but indifferent to being interviewed. Wallace permits Lipsky to tape-record their conversations, with the proviso that Lipsky won't use any direct quotes which Wallace asks to have taken "off the record" five minutes later. Wallace opens up to Lipsky on a variety of subjects, ranging from dogs to television to fame and self-identity, but remains somewhat guarded. He tacitly admits to alcoholism, but offers few details of his experience. Lipsky's mention of Wallace's brief voluntary institutionalization under a suicide watch causes some friction between them.  answer the following question:  The mention of the author's brief voluntary institutionalization results in friction between which two characters?
David Lipsky