Student or Learner
I know 'Much' is used only negative and question etc. do you love me much? or i dont love you much.. But we use 'a lot' instead of much in positive sentences for ex. I love you A lot
Are these correct that i said ?
A girl is more likely to aske her boyfriend 'How much do you love me?'
and the boy's answer could be
'A lot' or 'You have no idea how much I love you' or 'I love you more than anything in the world' or 'I love you like crazy' or 'You mean the world to me' and many many more alternatives.
Back to your question:
You use much after very or so
In affirmative sentences you use 'very much' mainly when you are referring to the intensity of the action expressed by the verb:
I love/miss/admire him very/so much
and preferably 'a lot' when you think of the visible result of the action expressed by the verb
He reads a lot (of books)
He eats a lot (of food)
He dances/talks/spends a lot
Hope this helps