French language Q&A Forum

Hi! This is not a question regarding grammar but more of a cultural question. In many languages, the changes of the social understanding of gender has also changed the way we use grammar. In English, we don't use gendered adjectives, but it's common now to use gender neutral pronouns such as they/them, in Spanish we use the letter -e instead of -o or -a to make adjectives gender neutral. Is there anything similar in french? 

I need help understanding this sentence that one person says to another: C'est formidable que vous avez l'air seul.

"It's great that you look alone/lonely" just doesn't make sense, or, at least, it's not a very nice thing to say to someone.

I did not think ennuyer is reflexive.  Therefore, I used ai and not suis.  

Why is it téléphoné and not téléphonée? 

Est-ce que le « ne » qui suit « personne » et « rien » est omis en français parlé, ou est-ce qu'on dit quand même « ne », même dans un registre très familier ?