Feeling Trapped

Hey ladies! I need some advice or input from an outsider. So I am 21 weeks pregnant. I am currently with the baby's father but I'm doubting our relationship tremendously. I was on birth control when I got pregnant so it wasn't planned. I am very excited to be having her as I realize she is very meant to be and what God has planned. I also have another daughter who is 6. Her father is not around. We were together for 13 years and he left when she was 11 months old. (Got into drugs and trouble) Before I got pregnant this time I debated leaving my boyfriend for many reasons. He is a very "hard" person. I mean like rough and tough, doesn't have sympathy for anything and is all around hard to get close to. The MAIN reason is because I truly do not feel like he is the right man for my 6 year old daughter's father figure. He is not warm with her. Some days he doesn't even say hi to her or anything when we get home. I don't think he thinks to do so. He complains that she whines too much and he doesn't like the way she does certain things. He thinks I put up with too much from her. She is a very good girl and gets compliments from everyone. (Besides him) Of course she tries her mother, don't most kids? She's not a bad kid by any means. She very smart, sweet, and helpful. And she is so excited to be a big sister. I just don't like that this baby's father does not treat her the way I would want as a father figure for her. He doesn't play with her or anything. He doesn't seem to try to make her feel loved or wanted or anything. If he does it is very forced and awkward. He says it's just not his personality. Idk. Something in my heart just tells me that he's not the one. But I'm 21 weeks pregnant with his child. I feel trapped and confused. Any advice is appreciated! 😔