One can be in a room with thousands of other people and be incredibly lonely. One can also be in an expansive field without another living soul for miles and be anything BUT lonely.
"Loneliness" is not defined by the number of other people one is physically surrounded by. I remember many, many nights lying next to my ex-husband feeling UTTER loneliness, yet he was touching my skin and I could hear him breathing as he slept. And now, regardless of where I am and whether there is another living being in close physical proximity or not, I am not alone as my husband is always with me: loving me, understanding me, supporting me. .... whether I can feel his skin against mine and hear him breathing or not.