What kind of reputation does Romeo have in Romeo and Juliet?

I take it you are refering to what we are told about Romeo
before we actually meet him in Act I scene 1. After the altercation between the
Montagues and the Capulets, Montague and Lady Montague express their concern about their
son with Benvolio, and Benvolio tells them how he is obviously wanting to be by himself
at this time, and is shunning company:

readability="16">

Where, underneath the grove of
sycamore

That westward rooteth from this city
side,

So early walking did I see your
son.

Towards him I made, but he was ware of
me

And stole into the covert of the
wood.

His parents share what
they know about Romeo as well, and how he is clearly depressed, as reference to his
"tears" and "deep sights" give witness. Something is clearly troubling him, and he has
gained a bit of a reputation for being a loner and for shunning
company:

And
private in his chamber pens himself,

Shuts up his windows,
locks fair daylight out,

And makes himself an artificial
night.

Romeo therefore has
gained a reputation for being dark and moody and rejecting the company of his family and
friends. Whatever is troubling him has caused a significant change in his behaviour,
which is why his family are so concerned.