If a girl says I’m “sweet” and “thoughtful” does it mean she’s sizing me up as long term relationship material?

[Anonymous]

She has implied I have an edge so I didn’t take it as an attack on my manhood or sexuality being called “sweet”. And she’s obviously put some thought into me, and being around me improves her mood. But when girls use the word “sweet” to describe a guy, what does it mean?

[Sadly_It_Fell_Off]

It means she's recognised something nice in you which is non-threatening and not egotistical.
As for the long-term relationship bit, its hard to tell from what you've written but clearly she likes you considering her use of nouns and adjectives to describe you and some of your behaviours.

[Asker]

Well, she said she just knows I would never use her or hurt her. I'm friend-zoned and she thinks I'm gay, right? Kidding.

[Apsi31]

I'm not that great at this kind of advise thing... Bht I have a gut feeling that you're friend zoned:-\

[QueenofCups]

Based on what you said below, I think she likes you.

[Anonymous]

I think there is a bj or minimal a handy in the near future for you