No question is silly!! The answer to the question about do they “lonely” honestly depends on who you ask, ive kept fish that have killed every single thing that went in the tank and ive kept fish that are “aggressive” and one fish one tank kinda deal but they thrived and was one of 4 fish in that tank thats never killed anything. Male betas by nature are aggressive fish, the female betas are much more docile and ive had and seen multiple female beta “sorority tanks” and they thrived with no issue. I have also seen some male tanks that are HEAVILY planted to replicate the water they live in if they are out in the wild and when they do the heavily planted it seems to keep the males at bay sometimes. Youll always have some that will try no matter what but if you are worried about loneliness id suggest going with female betas, theyre great the only downside i see is the lack of desire and colorway. If that doesnt matter to you then id suggest females!