I had upgraded to first class during check-in, on a whim. So I thought I’d try to get into the American Airlines lounge, but I found that just having a first-class ticket doesn’t cut it; you need to be a member of their loyalty program as well.

だからベビメタに会う前にファーストクラスにアップグレードしてたってかいてんぞ。
過去完了形な。ベビメタにあったのは過去形。