Hi, and welcome to the forum.
Sure sounds to me like you've got it going on. Good for y'all! Especially coming out of the unhealthy relationship you had before.
As for your acquaintance, the one of whose triad you were highly critical: if you made her relationship grist for the gossip mill, you owe her an apology. Invite her to meet you for coffee, and have yours with a side order of crow. Who knows? A new friendship may grow out of it; the two of you do share something interesting in common now.