I love alot of people at the same time in my life: my mom, my dad, my sisters, my brother, my husband, my in laws, my friends. So yes its possible to love two, three or even ten people at the same time.
Exactly. Parents love their many children, children love both parents, siblings love their many siblings and we can go on and on and name similar instances. I'll even say that it's more odd to love only one person than to be able to love more than one person. So there isn't anything wrong with loving 2 (or even more than 2) people at the same time.