absorb (oneself) in (something)
To occupy or preoccupy oneself completely with activity or pursuit. Greg absorbed himself in video games every day after school. I wanted to impress Juliet, so I absorbed myself in music by her favorite band.
absorb oneself in someone or something
Fig. [for someone] to become very interested or preoccupied with something or someone else's interests. Tom would often absorb himself in his children's activities on weekends.