Is it normal for a guy to tell his gf not to dress "too" good?

it’s not “normal” it’s usually a sign of an over jealous and paranoid partner not wanting their other half to look too good because they don’t want other people to find them attractive

Yea if hes insecure, ive heard of guys doing that

Nope.

If he's insecure, yeah. I don't think most guys do that, though. Other dudes are gonna be lookin' one way or another.

Stop dressing so good, is a weird thing for anyone to say to someone else.

ITS normalt for a weak man

No that’s not normal

Yes if they are insecure.

Nope

No

It depends on the context. If you're going to the ghetto then perhaps dressing too challenging would be a poor decision.

No