Romantic feelings aren't surprising on a site like this. I mean, here we are vulnerable and sharing some intimate, scary things with each other. We're suicidal. Put together, this can all make for some intense bonds. There have been many people here who have started romantic relationships with fellow members.
It may sound like a good idea to start a relationship with someone from here. It may even sound therapeutic. But in my opinion, it's generally not a good idea. Both parties must be clear on things such as the goal of the relationship (recovery vs suicide, amongst other things). One person may end up in a position where they feel like they have to save the other person, for example. The relationship quickly becomes unhealthy. Boundaries can be forgotten or become inconsistent. Etc. There's more, but I can't clear out the muck in my head - I hope this is okay for now.
Basically I don't think relationships from the site are doomed, but due to the nature of thd site and a few other things, the odds for a healthy romantic relationship seem stacked against people.
And, sorry, to answer your question, I've never had romantic feelings for someone here. I can say for better or worse, I feel closer to my friends here than anyone irl. But to me, my friends are just super cool people that I click with. If I feel anything "beyond" that, it's that they feel like brothers/sisters/aunts/uncles. Haha.