[bartleby9]

Some people are just like that (I know I am sometimes). Don't take it personally.

Rather than try to change how that person responds to you, you can either work on being ok with how little they initiate, or you can put effort into other (or finding new) relationships where people will initiate more.

People also go through busy and less busy times - so maybe try again with this person in 6 months and see if things are different.

There are so many different kinds of people (with so many different preferences), that I really think your time is better spent finding new people that you click more with, rather than trying to change yourself.