Thank you for letting me know, Sarc.
I think you're being a little over-critical toward Rydia for the way she acts and reacts in the game, but you're nowhere near as bad as the majority of people are when they talk about Rosa. It's pretty unanimous among people that Rosa is a weakling and a wuss for not being stronger than the main character when kidnapped in Fabul and not being dumb enough to resist and risk having her beloved Cecil murdered for it (my points here might only apply to the SNES version; the DS version goes differently where she doesn't get enough time to react). It's also pretty unanimous among people that Rosa's idiotic, weak and obsessive for crossing land, mountain and desert on her own in pursuit of Cecil because she loved him deeply and wanted to make sure her beloved didn't DIE. AND, I might add, with her Desert Fever being the only bad thing to happen to her as a result of her journeying alone. If THOSE sentiments are acceptable, I'd say seeing Rydia as a wuss for being afraid of fire is fair game.
I see strengths in both of them. Back when people weren't so hopped up on praising their green-haired goddess at every chance they could, Rosa and Rydia were more like opposite sides of the same coin. Things have changed in the past 15 years. I see the good parts of Rydia, but I can't appreciate them at all anymore because of what her fans have said and done about her and Rosa. I'm not being stubborn, I literally cannot appreciate Rydia as a character anymore, even if I try. I see what makes her a good character and it's empty and hollow to me. I feel nothing for her but a passing acknowledgement of what makes her what she is.
You got the dumping before FF4 thing reversed, the person claimed she was dating Kain but dumped him because Cecil had more power and that's all she cares about in a man. Which is a complete lie, I've even found a website someone made to post up their translation of a guide that says the exact opposite: that society and family constantly pressures her to go for Kain because he's of noble birth and discourages her from pursuing Cecil because of his dark knight class and unknown parentage, yet her heart belongs only to Cecil. But, people love to hate Rosa, so lies are acceptable.