My crush has been opened up a lot to me since closer to me , is it good sign?

kurosakitachibana
Hi guys , i've been close with introvert guy since second semester. We met each other since first semester , but we were just a friend.
Especially , i was close with my ex crush. At first , he was pretty private to shared he felt at first. He was shy to approaching me. I wasn't close to him.
At first semester , he tried to closed to me like he upped to me while i wasn't looking to him , but he would went away if i captured him.
But , since second semester especially online class begin. He has been showed up to me like he tells about his pasts. Which part he told really private story. Sometimes , when he gets something bad. He immediately tells me to how what he feels. It is different from my ex crush who really private to tell his feelings. We tend share what we have. Sometimes , he makes joke to me.
I never force him to tell what he feels , he says , he almost never tells what he feels except me. ( especially female friends and classmates )
I ever apologized to him being talkative on phone with him , but he doesn't mind about it. He likes me when i talk everything to him.
When , i need him. He always ready to me. Especially , when i need to support. He is supportive person. He gives me advice which make me more open mind than before.
I care with him , like ask him for favor or support him. he likes me when i care him. He does same with me.
Everytime , when i want to call him via phone , he always ready to spend his time to call with me.
Can you give me suggest?
My crush has been opened up a lot to me since closer to me , is it good sign?
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