The end (spoilers)

Classic coming-of-age thing. The drive to get Dom was their last fandango together.

They were all growing up and going in different directions - probably to never see each other again.

Then you are young then if you don't get that ending--- am I right? Some friendships from our youth and early adulthood just fade after certain major changes in life or stages. it's not in all cases but it does happen to be a common thing as you grow out of your wild days- graduate- get a real job- start taking care of yourself more- party less- have kids- get married - ect. So they realize that there isn't much more ground they can cover as the Groovers. They are going to the next stage in life (well most of them)
For me I wouldn't say that Waggner went to Canada- I would assume he had hos brief honeymoon in Texas or Mexico somewhere - then went off to Nam- He decides to do the right thing cause he has a family/ wife of his own now that he wants and has to take care of (I know her dad is rich- I don't mean $ wise- I mean all the rest of the hubby stuff which does include $ also). Doorman-I would think tried to be a priest or something but found it to restrictive and went back to school where he got a degree and then taught philosophy. Gardner I would thinkskipped off to Mexico even deeper- partied up a bit but found after 2 years it was getting old and lonely- found a mamacita and got married. Passed out guy was a major accountant in NYC and a big shot- a ferrari - penthouse- summer homes over seas - THE Works. Phillip I'd think went to Nam- got shot- was sent back to the US and became homeless and even more crazy dying at the age of 39.

I love house of a deep nature.
Remember- wherever you go, there you are.

When my niece was a senior in high school, we were trying to encourage her to pick a college that was most suited to her and to not pick one just because that is where her BFFs were going. We had to break it to her that it was very likely that many of her friends would go different directions and she may never see them again. This upset her and it was hard for her to believe.

I think we all have had "Groovers" in our lives, a group of different people put together for a common goal (in this case, a college education). You think they are going to be your BFFs but it doesn't work like that. People get married, get jobs in other parts of the world, some get into drugs or religion or different politics.
These guys were all at the same college and in the same fraternity but clearly had separate paths: a big-city accountant, a small town minister, military career, a family man and wherever Gardner ended up. It's not likely their paths would cross again.

The passed out guy entered the corporate world at Arthur Andersen/Dallas and probably moved up the corporate ladder. He probably ended up in another large city through promotions and transfers.
Dorman stayed for a few years in the little Texas town of the wedding and then was assigned to another church in another little Texas town. Married, five kids.
Phil went off to Vietnam but probably did not see any frontline action. He was an officer after all. He stayed in the military getting moved to Germany and different bases around the USA. He married, had two kids and retired as a Captain and got a job as a plant manager.
Waggener's rich father-in-law pulled some strings and got him deferred to Germany. He then returned to work for daddy-in-law. They had one kid and lived miserably ever after in the suburbs.
Gardner lack of grasp of Spanish made his stay in Mexico short-lived. He worked on a farm to earn enough money to return to the USA under an assumed name surfacing in California. After realizing he could not BS his way through life, he got a job selling stereos.