Haven’t met my bf son.

So I’m (26) & my bf (30) and we have been together since May of last year. We live together and have been living together since Oct of last year. Well I’m concerned because I still haven’t met his son yet. He says he doesn’t have anything going on with his child’s mother and that he feels like it’s not time for me to meet his son yet. We have had our ups and downs in our relationship due to me feeling like I’m not what he wants and stuff like that but he “claims” that what I’m saying is completely wrong. Well he just got some news that he has to get his son due to a situation ( I don’t wanna get into that ) but he said that he was going to go to his brothers house while he’s with his kid. I asked him why he cant he just bring him here and he was like he’s not changing nothing just because he had to unexpectedly get his child for the weekend. Am I wrong for feeling a way? I feel like I’m not enough forreal. It’s been 15 months already and I know it shouldn’t be a timeframe on this type of situation but he’s met my daughter already months ago. A few months before we moved together.