It's a rose I bought 3 days ago, I think it really grows fast, it produce a new flower every 1-2 days! BTW, is there something wrong with the flowers?
It is most definitely not a rose. As for what it is, I suspect it's Clarkia amoena, previously named Godetia. These come in various colours and bi colours, usually in the deep pink through to whitish pink range, and are annuals.