You and a friend are on vacation and decide to approach 2 girls hb7 and hb9. You go for the hb9 and he goes for the hb7. Anyways the hb7 tells him she has 2 kids and he loses interest (she lied, tells me 3 days later that she has no kids..)

Anyways your friend starts to pursue the HB9 and she tells your friend that she likes you.

Your friend than proceeds to tactically undermine and ruin your relationship with HB9 anyway possible. Everything from meeting new social groups and turning them against you, tries to make you look bad with the HB9, makes the HB9 really uncomfortable anytime hes around her.

Anyways you and your friend go to a club and you see a hb6 who doesn't speak your language but your friend knows the language so you ask him to translate anyways he just speaks to her in their mutual language and starts to hangout with her.

He then says "I stole your bitch bro" and tells HB9 that "he stole my bitch at the club" (I found the whole translating situation just funny tbh because he translates do you want to dance with my friend? Than she says yes than he proceeds to talk to her for 15 minutes in spanish)

Anyways HB9 says my friend is selfish not her type, and that shes not interested In him. And says that he doesn't respect me.

Anyways the HB9 and HB7 still want to hangout with me and we decide to go to a club (my friend had a date who didn't show up than he joined us at our pregame and then the HB9 changes her mind about going out)my friend was making her feel super uncomfortable.

So I go out with the HB7 and once the HB9 doesn't wanna go out he fucks off and does his own thing.

So anyways me and my friend share a friend group of high value people so he will likely try to ruin my reputation there. Should I preemptively create a defence for when he does this?

Also he has shown many narcissistic personality traits and some sociopathic traits.

How should I move forward?

Also you and him both have a good abundance mentality and he approached close to 70 women during the trip. (So his defence Is just like who gives a shit type of thing).