Riker has insulated himself on the Enterprise. By his own admission, he clearly should've accepted a captaincy early on in the TNG run. My opinion is that he's got some esteem issues stemming from HOW he got to where he is. Until he reached the Enterprise, he was a rising star, on the fast track, but slams on the breaks to that trajectory, & takes a 16 year detour, but in some ways still behaves like he's that same blasting comet
The net result to that action is that over those years, he is humbled in a huge way, whether it be rightfully being relieved by Jellico, having an ugly reminder of who he once was, in the discovery of Tom Riker, or downright getting exposed over the Pegasus incident
As his personal story unfolded, it played like he was overcompensating for what was an inferiority complex. Look how his career played out. Months after graduating in 2357, he ignorantly opposes a valid mutiny, & was complicit in the cover-up, whereby he likely gained the support of his captain on every letter of recommendation then on. Directly thereafter, he's stationed on Betazed, engaging in a lengthy relationship with Troi, but by 2361, he's promoted to lieutenant, posted to the Potemkin, & in short order, distinguishes himself on Nevala IV, earning another promotion to Lt. Cmdr, & rapidly selected as 1st officer on the Hood, by the end of that year
So basically, after laying low on Betazed, as an ensign (Maybe waiting for the Pegasus dust to settle) he gets 2 promotions & an XO position within a YEAR or so, and after only a couple years as the Hood's #1, is given another promotion, & offered his own ship. (Which he refused) He went from ensign to commander in 3 or 4 years, & only 2 postings. When Picard read his letters of recommendation, Pressman, Desoto, the Potemkin captain, & whoever his superior was on Betazed were the only actual commanders he had served under, less than a year on Pegasus, like 3 on Betazed spinning wheels, 1 on Potemkin, & 2 or so on the Hood.
He was rushed to the front of the line in a big way, & I have to think none of it would've been so, had he not been supported by Pressman, throughout at least part of that period. There is likely some truth to Pressman's claim that he "Made" Will Riker. That's something of an embarrassment really, & a man might want to distinguish himself to overcome being overshadowed by that, but at the same time, he's deliberately holding back on taking command, because maybe he hasn't the confidence in himself, given all the propping up he's gotten
That's not how an officer might want to present himself though. So he's boisterous, seemingly overconfident, rather exclusive to his inner circle, & bears down pretty badly on anyone he objects to or disapproves of, i.e. Barkley, Ro, Jellico, Tom Riker, Sam Lavelle etc... He is pretty douchey to all of them for one reason or another, when really, he ought to be one of the more compassionate & understanding officers, given his own questionable history
But no. He strings along Troi for years, until he gets his command, & then it comes off as if he's settling for her. He behaves often like he has a right to replace Picard as the D's captain, even to the admirals. Hell, he barely comes to terms with his own father, (Who is probably who he gets all these awful traits from) On a personal level, he is a very self-centered, self-entitled, preening & falsely self-righteous house of cards, just waiting to be toppled.
I don't care if he tries to be the life of the party, I'd rather be friends with Worf lol