Im with you, I play a lot with friends but also love to play solo quite a bit. Why? Less stress. My friends are great, we play a lot together, but they easily rage and then that effects my mood when playing. When playing solo, its just me, I keep in a positive mindset and just chill. Also yes, one thing which pisses me off the most is when 2 or 3 of us will be playing and we concentrating, then somoenes friend who I don't know comes in and starts chatting, they always get a nice kick out of the party haha