1. Less talk, more action. Over talking will kill the vibe. I've lost 3 FWBs because I talked too much. For instance, if you want to bounce her from the john to the bedroom, just lead her there without saying a word. I've lost one FWB this way because I've said, "Let's go to the bedroom." And then she said, "What are we?" Bam. The end.
2. Always give her the best fuck she can possibly have. During and after fuckfests, do not ask for any validation like, "How did I do?" "Did you come?" "Was I awesome in bed?" When they wake up, girls will talk and say something like, "What did you do? My boyfriend/husband never did something like that." The best answer in this case is something like, "Cook some breakfast for us." If she complies, then you fucked her brains out. You can even give her other compliance tests like, "Fuck. I think I dropped my $50 bucks at the nightclub. That's my fare money." When she gives you taxi fare, that's all of the validation you'll need.
3. Be nonreactive. When she talks about any kind of drama, ignore. No reaction. Do not smile. Do not listen to her while nodding your head. If she takes it too far, say, "I'm leaving." Cut. Leave. No follow up words, nothing.
If you want more, ask Wolfwood for more pointers. The 3 pointers above work for me in FWB situations.

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Approach. Open. Escalate. Isolate
Here are my two essential rules on texting that will save you tons of time and money:
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