What is the purpose of つい in this sentence?

> うんうん、楽しくてついエキサイトして、熱くなっちゃった

And does エキサイトして just mean "getting excited"? For context they were talking
about a game they played.
CC BY-SA 4.0
2023-01-07T18:00:54.617
98005
2023-01-07T18:44:27.643
2023-01-07T18:44:27.643
40121
40121
question
grammar meaning usage katakana conjunctions
What is つい doing in the middle of this sentence?