AITAH for being friendly with a single dad, who is my neighbor?

I (f22) live in an apartment complex that is actually pretty tiny for my area. They are all studios and so thin, I can quite literally hear when my neighbors turn on their showers.

My bf (m29) and I have been dating for a year and I have lived here this whole time. My neighbor though, is new. I noticed him when he was moving and noticed that he had a baby, a newborn. I said hi but not much else.

I then noticed that the mom does not live with them, it’s just him and the baby. I hear them baby crying 24/7, even in the middle of the nights.

I felt so bad for him, idk why. I guess I would feel for any single parent, really. I happened to be in the elevator once with him too and we had a brief conversation. He told me he is a single dad and he works as a mechanic, and a babysitter is there during the day, a teenage girl who is his cousin but just during the summer now while she is out of school. He said if I have seen her around that is why.

My heart just broke for him. Idk the circumstances at all but being a working single dad or mom must be the hardest job in the world.

So the other day I got on Amazon and into target and bought him and the baby a few things. Just a care package, is what I called it lol. I also got a few things for the babysitter and wrote a note to tell them if they ever need anything at all, knock on my door.

I didn’t tell my bf I did this because I honestly did not think he’d care very much. But my neighbor happened to knock on my door later while my bf was there.

My bf opened it and was confused. My neighbor asked if I was home and my bf was immediately so fucking ride, even as the man was holding a baby.

I said yes and the neighbor just proceeded to thank me, and tell me how much it meant to him. I told him it was really nothing to thank- it’s what neighbors do. I told him he could ask for anything from me and especially his cousin could, if she needed something with the baby home alone.

When he left (which was about 2 mins) my bf BERATED me with questions. He basically accused me of flirting with this man? And trying to be friends with him for ulterior motives. I was literally fucking stricken. The man is a single dad, I was just trying to be helpful???? My bf said ask any man and they would be mad at the situation too. So here I am, AITAH?