A: Lin aspired to be an artist when he left university 10 years ago, but now he’s a manager of an art gallery.

B: Life got in the way. At least he’s doing something not far from his interest.

Note: Literally, if something gets in our way, it blocks our path and hinders our progress. “Life got in the way” is a general way of speaking when something always happens to knock your big plan or project off the rail. “Life” refers to the daily challenges of everyday life, like to put food on the table and raise a family.