For whatever reason, a lot of my friends have gotten into new relationships over the last several months. A lot of them have gone from zero to 100 on them, even if they've been skeptical of men in the past or said they were happy alone. For example, one is engaged after seven months together, and another is insisting she's in love and going to marry her guy even though they've only been together for two months. I've even shared FDS with some of my friends and they agreed with it, but it's like it all went out the window as soon as they actually started dating again.

I feel like a party pooper suggesting that they slow down, saying so-and-so seems like a good guy but you've got to keep vetting, etc. I don't want to straight up lie to them either, though. At this point I kind of don't want to engage when they talk about their boyfriends/fiances, but these are also tried and true people for me and I definitely don't want to stop being friends. How do I remain supportive while not condoning behaviors/actions/thoughts that I don't think are good for them?