different anon but the song lyrics of Awesome Feeling also indicate they really enjoyed each other's company:
nothing's gonna take us down
at first I turned my head
but then you really turned my day around
we're burning bullies lookin' fine
we do whatever, cause it's fun
why do I think I'll never lose my
we started out as friendenemies
but then you opened up to me
I found that we have chemistry
So it's clear that while they did dislike each other at first, they really did enjoy their time together and found out they "have chemistry".
And then of course>you know I never meant to hurt you>you were my angel, my beautiful dove>we spiraled high on a gust of love>nothing could tear us apart, till the day you broke my heart
again indicating that they really did like their time together and Marco was really hurt by Tom's ulterior motives. To which Tom responds by resurrecting Marco's fav actor for him even though it's so taxing he faints from the effort, which seems to impress Marco quite a bit and is "cool of you".
So he wasn't faking having fun. Their interactions have been steadily getting friendlier and friendlier and the crew seems to sorta ship them