Girlfriend says that im immature and rude and im not as flirty as i was before, what do i do now?

It is alot harder to work on something you dont know about... I think you answered your own question.

I think you have probably gotten too comfortable with your girlfriend. How long have you been together?

The fact that she says you are not as flirty as you were before means that she is feeling underappreciated - why don't you flirt with her anymore - what she is really asking is "what is wrong with me??" Same goes for the rudeness thing - she feels there must be something wrong with her if you are being rude to her or worse if you are being rude in public and embarrassing her. The immaturity thing is pretty standard - the majortiy of girls think their boyfriends are immature at least at times. My boyfriend has this one friend who makes him revert back to a 12 year old whenever they are together. It annoys me sometimes but it's not a massive deal.

You need to address these issues with her and decide how you really feel about her. Why are you not as flirty with her anymore? Why are you being rude? Is it because you are too comfortable or is it becauise you are getting over her and the relationship? (this is what she is really worried about).

Good luck!

_________________
....Thought you might like a girl's opinion....

Because you are with your gf, that means she likes you, she is attracted to you, otherwise she wouldn't settle with you.
I see a solution here: Remember why she was attracted to you in the first place. That is the thing that should keep the attraction working.

im gonna be honest wit you, i dont really have deep feelings for her anymore, and im just too much of a pussy to tell her that

assuming you don't have any feelings for her anymore, i have to tell you one thing:

just get yourself together, take the courage and tell her!
sounds like you are afraid not to find another one! thats nothing you have to worry about! there are plenty of fish in the sea. and the sea is huge. just do the math. by joining this forum you already showed the attitude willing to change yourself, now is the time!
don't worry warrior, nothing great was build in one day!

you will only hurt her more, if she catches you cheating... you are on the best way to that if you don't have the guts to tell her about your feelings. don't fear to be alone, it can be an opportunity!

i have been in a similar situation and trust me, i fucked up very very badly. so if you feel like wanna go out and pick up other girls, and i guess you want to, why else would you be here, just end the relationship or let me better say commitment first!

the scene is so different now