So for the past 2-3 months I've been casually having sex with strangers I meet online. I never really felt anything after these encounters emotionally but I figured that maybe the sex was just bad I kept looking for different partners to see what the deal was. Well last Friday I went to this girl's place we smoked some weed and watched like half a tubi movie, talked a bit then did the nasty. Ngl definitely the best sex I've had her body was perfect and i think we had good chemistry considering how little we knew about each other before the night in question. Anyway I left her place physically satisfied but still felt empty. I told my friend about how I felt and she said something along the lines of I can't find happiness in others and that I need to love myself/be comfortable with who I am and with being alone in order to not feel this hollowness. Idk