Yes, sounds like you should stick to the other friends and leave that one gf out of the loop. She's giving you R advice after she cheated on her H and has continued that R?? Whatever.
However, she does have a point about being cautious. I understand that you're enjoying just going with the flow. But it can be tricky doing that and dating while you're on the rebound. Please please please just try to not get attached to this guy (or the next one). When I was discussing appreciating male attention with the C he said it was ok as long as I understood that I wasn't ready to date because I needed to heal and be on my own for a while first.
I did end up hooking up with someone I've known for a long time. He's the perfect person for a rebound fling because he's definitely not into commitment but fun to be with. Of course I ended up liking him a bit too much but BF came back into the picture so c'est la vie. Just be careful, I know of what I speak.
I did get something out of it. I know that there are other men out there who enjoy spending time with me. Chances are good that I would find someone else to settle down with and not end up the crazy cat lady. But the flip side of that coin is wondering if someone out there is better than the someone at home. I think I have a bit of the grass-is-greener syndrome.
If you love somebody, set them free. http://tinyurl.com/2empx2g