My sim daughter has a romantic interest in her mother and father!?

If your sim flirts with the non-family sim while she is also interacting with the family members (like in a big group convo) the game can glitch and thinks your sim is flirting with all the sims at once. The family member sims will feel negative about the interaction,but still unlock the romantic relationship bar. I saw it happen on one of xUrbanSimsx Sims 4 videos on youtube. I don't know if there is a fix for it or not. And like stated before,using the cas cheat can screw things up as well. Hopefully this will be fixed in a patch soon.