As i'am Russian guy, i have a strange feeling inside. Hmmm. I think you forget that all people re different fo example, i do oral with my girlfriend XD that's not a problem. Also i didn't controll her, where she goes. I just only ask, when is she planing to be at home ( for safety reasons, so i knew when i should start worring).
As for the flowers, c'mon, why not? girls love them.
Regarding money for dinner. Hmm i know, that in US it's normal, that everyone pays for himself. But it's not normal for us. To be honest i agree with my national. From old times, men was bringing food to home. So i think, that it's the same.