How do you deal with a female friend of the target that negs you or cuts u off and guys that come into the set that both try and get you into the DLV zone?

discredit her or his inmediatly, u dont want the target to see her friends dont like u

but dont do it in a rude way (u also dont wanna offend her friends) , say it like its a joke
u can say things like: is ur friend this lovely all the time or is she just on a good mood today

ex2: ur friend is so cute, it reminds me of my little cousin, can i adopt him?

by saying these kind of things u will reverse their intentions but the real advise here is to not get into that situation (fight with friends) in the first place,
so everytime u see a pain in the ass friend, try to win some alone time, aislate her and take it from there