つつ
tsutsu

Particle

1. while

Related to つつある
そうやっておれのことをにしつつ、しかし素直すなおになりきれない、そのツンデレさがいまわかおとこあいだだいブーム!
sō yatte oreno kotō kini shitsutsu shikashi sunaoni narikirenai sono tsunderesaga ima wakai otokono aidade daibūmu!
That way you keep thinking about me but are unable to admit to your feelings, that hot and cold feel is a real boom among young men!
Particle

2. even though; despite

Related to つつも