Some of them died in office or chose not to seek re-election rather face a defeat at the ballot box, but still, one-term presidencies are not rare.
We've had 4 two-termers since 1980 (Reagan, Clinton, shrub, Obama) that is unusual in that timespan.
But I just wanted to look at the bright side.
I'm in Florida. The numbers out of Florida with Trump getting over a million votes more than he got in 2016 in Florida completely stomps me.