Is it wrong that I want to be in his son's life?

I have a weird situation...
My ex that I was with for 7 months has a 1-year-old son with someone else, obviously they broke up so of course she kept their son away from him for a long time. I was dating him the whole time she kept their son away and I went to all the court dates and everything with him because I knew how much he wanted some custody with his son so I was there to support him. Him and I eventually broke it off mutually because we were just doing a lot of arguing and decided friends would be better. The "friends" deal didn't work very well, we basically stopped talking. Now its 3 months later and hes talking to me and happily telling me he now has weekends with his son and hes working 2 jobs, I cant even explain how proud I am of him. He wants me to meet his son and I really want to but I know once I meet this child I'm going to be so attached to him because I helped my ex fight to see him so I feel so much care for the child.
Is it wrong that I want to be in his son's life even though we aren't together right now?
(I'm 18, he's 19)

No its not, its pretty nice of you actually, most people wouldn't gt involved with somebody elses child

I think you feel like you've helped his son and protected him from not knowing his dad so I think you should meet him and im also guessing you still like this guy a bit
funmail me