I'm sorry, it does hold pretty true in my experience, although to be fair my boyfriend is a mathematician. And I am on the autistic spectrum myself.
Maths is beautiful indeed, but in actual fact languages get an even worse rap - the general attitude seems to be if you want to study maths then fine, you must be really clever, but wtf is going through your mind if you want to do French >.<
Actually, tu me manques just means I miss you. But it is backwards if you think in English.
It's because it's shortened from tu manques à moi, you are missing to me.
And you're so right, what people don't realise that by studying a language e.g. if you did a French degree, you don't just study the language but also the culture, history, literature, thought, the scientific/linguistic makeup and development of the language...