My friend invited us to a bday party,lied to us, then had a party anyways?help.?

if her and some of the other girls are going to blatantly lie to your face then you dont really need them sort of ppl in your life. they are not good friends, friends are ppl you can trust and talk to but obviously you can not trust these girls. confront them 1 more time and if they still lie to you then you no what you need to do (ditch dem bitches)