You both reconnected after those two years and it seems they like/missed you even more from when you were absent. You're more acquainted with each other and are always greeting each other. They are trying to be more open with you now, but still acquainted. They are friendly and nice towards you, talk to you more when it's just you two alone, and show subtle signs of liking you but isn't entirely sure how you feel about them.
So even if this is the case, is it too much to get your crush a simple gift? Like a tumbler/thermos for their birthday?