"I think Marcus was a little more subdued about it. I don't' think it had anything to do with something bad that went there. I think he has a couple of places he's more excited about [and] more interested in."
Half of Davis' Chapel Hill stay was accompanied by flu like symptoms.
"I think [being sick] had a big thing to do with [his feelings towards the visit]," Prince said. "He was sick all that last day [of the visit] and he missed the next day of school here. So I think, obviously, that could have had a major affect on him."
Prince said UNC is recruiting Davis, a 6-foot-4, 220-pound athlete, exclusively as a quarterback.
"He's going to be a quarterback," Prince said. "He didn't visit anywhere that said he wasn't going to be a quarterback. He's that good a quarterback."
UNC was Davis' final official visit. He has also taken official trips to Connecticut, Penn State, and Virginia Tech.
Dunn, a 6-foot-3, 215-pound wide receiver, concluded his official visit schedule Thursday with a trip to Virginia. He has also visited Connecticut and Virginia Tech, as well as UNC.
This weekend Prince will meet with both Davis and Dunn to discuss their college decisions.
Although Prince says UNC hasn't been eliminated, it appears very likely that Davis won't be signing with the Tar Heels on Wednesday.
"Marcus is considering Penn State and Virginia Tech," Prince said. "Right now, they're the places that he feels are the places he wants to sit down and talk about."
Although there is some uncertainty pending his trip to Charlottesville, UNC's odds are significantly greater with Dunn.
"It all depends on how the visit to Virginia went," Prince said. "North Carolina was in the lead last time I talked to him. North Carolina and Virginia Tech were his main two."
Both recruits will announce their college destinations and sign their National Letter-of-Intents Wednesday at 8 a.m. during a press conference held at their school.