I was looking for the other thread I actually gave the best advice out of all of you, and then I find out this is a different "falling for fwb" thread. This is discouraging. How many of you girls have become dis-enchanted with normal, healthy relationships ... I'll tell you the problem, women's liberati-...nevermind.
Listen, of course it can work and you are the sole judge here of something that can actually be stable and with good integrity for both of you. What usually tends to happen, however, is that circumstance by which the relationship came under terms often is telling of instability in the first place since you weren't seeking something stable, especially since you have a child. What makes your relationship with him now semi-decent is the lack of expectations from each-other, and that works in both your favors and its a great time because you are allowed to be at ease without any expectations. But people react very differently once they are actually committed and you will begin to have expect common decency from each-other and be responsible for the new rules that you impose on one another. Can I ask what happened to the father of your daughter?