At the present state, he hadn’t put together his future objectives and plans as too many various things happened recently, thus Erwin couldn’t just give a single reply.
Also, from Ina’s view, Erwin didn’t want to feel inferior as a man in comparison to Wendelin.
Rather, his height was tall and his face wasn’t at a different level than Wendelin’s.
Since the target of comparison next to him was simply far too great, that was the only reason why he was losing out.