'Khloe is feeling nothing but happiness right now.
Despite the allegations surrounding Tristan, who has a 16-month-old son Prince with his ex Jordan Craig, Khloe is reportedly only concerned with her baby at the moment.
The source added, "Immediately after [the birth], she plans on leaving Cleveland and never returning. He has practice today, but will spend as much time at the hospital as possible".
Thompson's supposed rendezvous was revealed after a video obtained by the Daily Mail showed the National Basketball Association star getting really close to an unknown woman, which was later revealed to be Instagram model Lani Blair.
Khloe Kardashian is officially a new mom after welcoming a baby girl on Thursday.
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Tristan, 27, was seen getting close to a pretty brunette at rooftop cafe PH-D Lounge in Manhattan over the weekend.
"Things are way far from flawless in their relationship, but they've put the drama on hold, for now, to focus on this very special time with their baby daughter". I talked to Kim [Kardashian West] yesterday and they were flying out there for the birth.
"They were talking and being around each other all night". The source also said that Thompson was texting and talking to someone on the phone, and the mystery girl appeared to be looking over his shoulder.
"Everybody knew who he was".
The pair have been pictured together several times at hotels and nightclubs.
"Khloe's assistant is on the ground in Cleveland packing her up and preparing for Khloe's move back to L.A.", a source told Us.