This my opinion, please be respectful. Today, I will talk about 2p!Italy
1. 2p!Italy is demisexual. Reason: Italy is quite flirtatious and out-there, so I would imagine 2p!Italy to be more interested in other things and/or find difficulty to actually like someone romantically. I would also say he's a Straight Demisexual (or a Heterosexual Demisexual) because I believe Italy is straight, but I'm honestly afraid of the fangirls/fanboys, so I will stick with him being Demisexual.
2. He trains daily. Reason: Italy doesn't like training.
3. He hated HRE. Reason: Italy never exactly adored HRE, only in certain times, but he also never hated him