My partner's BM moved out with their just turned 1 year old son back in early 2021. My partner would sit in BS’s nursery and cry himself to sleep on the floor next to the crib, missing his son. My partner & I have been dating for about 3 months after they moved out. He now has BS every other weekend. Myself & my BS16 just moved in with my partner at the beginning of June. My partner is having the hardest time adapting to having a full house with a kid that is not his AND that is a teenager (when he hasn't even really had the chance to raise a baby to toddler).