precision about the meaning of 筒抜け in the context

Question

I did not understand how the following sentence has been translated

普通なら二度と口を利かないところだけれど、涙ぐましい努力だけは汲んでおいてあげるわ」 　どうやらこっちの友達が欲しいと言う狙い、思惑は全部筒抜けらしい。

Normally, I wouldn’t want to hear you speak twice, but I will put in the painful effort to listen to you.” For some reason I tried to make friends with her, but my expectations were completely off.

"思惑は" means "expectations (in the sense of speculations) and I found that 筒抜け means "going in one ear and out the other" but that does not seem to apply here. Could you help me ?

Answer 1

筒抜け is a no-adjective that means "to be completely leaked out", "to be completely seen through", "transparent" or "obvious". You've got the other parts of the sentences wrong.

• 汲む is "to take into consideration".
• 思惑 in this context means "(hidden) purpose", "(undisclosed) intent". It's in apposition with 狙い.
• 友達が欲しいという describes the content of 思惑/狙い.

「普通なら二度と口を利かないところだけれど、涙ぐましい努力だけは汲んでおいてあげるわ」
"Normally I wouldn't talk to (someone like) you again, but for your sake I'll at least remember/consider this miserable effort (you've made) (, so you must thank me)."

どうやらこっちの友達が欲しいと言う狙い、思惑は全部筒抜けらしい。
Looks like my intent to make friends (with her or someone else) has been completely seen through by her.

Answer 2

The secret is leaked to others.

https://dictionary.goo.ne.jp/word/%E7%AD%92%E6%8A%9C%E3%81%91/

１ 物音や話し声が、そのまま他の人に聞こえること。また、秘密の内容などがそっくり他に漏れてしまうこと。「筒抜けに耳にはいる」「計画が相手方に筒抜けになる」

２ 人の話などが頭の中にとどまらないで通りぬけてしまうこと。「せっかくの忠告も右から左へ筒抜けだ」