What's your take on girls who hit the wall and coming on to you?

After discovering TRP few months ago, I have been lifting and applying TRP principles to my life. I also start noticing things that reflect TRP principles.

One of them is behaviors of girls, who has hit the wall.

I met some girls who are 30~33 years old, and I can tell that they are somewhat stuck in limbo. They are attractive, but have got old and cant compete with younger girls.

I, myself, rather spend more time with younger girls than older girls who hit the wall.

One of older girls is openly looking for "husband material" after having some time to find oneself (ie carousel). Although she is looking for LTR and many guys are around her, she is staying single because she just cant accept relationship with anyone other than best of best guy. But why would best of the best be in a relationship with an old girl, when he can get much better girls?

I have been in the monk mode for about 6 months, I can feel the positvie changes slowly happening to me. I am more fit and confident then 6 months ago.

So I notice that these older girls are seeing me as a husband material, (ie. good enough income, good enough body, but still has beta-ness here and there) and are being active on hanging out with me.

I feel like if put minimal effort into this, I can have relationship with them. But I don't want to have relationship with them. I rather have FWB type of relationship with them.

But I feel like that is being manipulative and cruel. I know that they want LTR with me, but should I use that as bait and just have fun and dump them?

I have mixed feeling, where if I spend more time making myself better, I will able to attract younger girls. So I am also worreid that by mingling with older girls, I might get complacent and ruin things. But then again, it might be good idea to get laid. (I havent got laid for 9 months since wedding got cancelled and LTR ended.)

What is your take on this? Am I still putting them on a pedastal?

Another question is, how can I have FWB relationship with girls? I feel like I can only initiate LTRs right now.