Jamie,
Please forgive my candor, but you need to listen to your OWN inner voice rather than listen to other's sad stories. You said, "there's a part of me that doesn't want to be with someone who treats me like that." That is great insight; listen to your own inclinations. You are obviously a young woman with a young daughter. You also wonder, "...how he's going to treat our daughter" as she matures. Again, great insight. You KNOW that (at this time) your boyfriend's views are disrespectful and are lacking in the genuine, caring love that he should be expressing to honor both you and your daughter.
Unless your boyfriend changes the views that he has expressed to you, I fear that you are signing up for years of heartache, if you remain in this relationship. His present outlook does not mean that he cannot change, but it is not likely that he will change unless something or someone (like you) presents him with a compelling reason to change. I hope that you will read the Bible verse that I have included at the end of this message. It basically says that a husband should love his wife MORE THAN he loves himself; he should place her needs and desires above his needs and desires (and that she should place his needs and desires above her own). If your boyfriend does NOT set the bar as high as it can be set, for both you and for his own daughter, then he has a self-centeredness that will ultimately raise its ugly head throughout your lives. [See my "personal note" below, which addresses self-centeredness.]
As a reality check, you should be wary about "why" your boyfriend is treating you this way, now. Perhaps there is another woman, or perhaps he simply is running from his obligations and responsibilities and wants to return to a perceived "freedom." But you need to be aware that it is a common psychological ploy for a man (or woman) who desires freedom from a relationship to act in such a way that he (or she) gets their partner to break it off. That sounds like a possibility here.
I recommend that you try to understand his motivations and expectations by having a candid (not angry) and honest discussion with him. Write down your questions/topics in advance and set a time for an uninterrupted time for a serious talk with him. When you do talk, try very hard to discuss your future together without getting "emotional." If his answers do not reveal that he is committed to you, is committed to his daughter and that he VALUES the two of you being in his life more than he values his own self-interests, then I think you have decisions to make.
You are in my prayers,
K.
Personal note: I can relate to your problem because I have a failed marriage in my past. My husband also had numerous failed marriages/relationships prior to our marriage. We now have a "perfect" marriage, but there is a significant difference in each of us that has made THE difference in our relationships with each other. Each of us has, first and foremost, a relationship with Jesus. We now enjoy a "Christ-centered marriage." As a follower of Christ, it is possible for ANYONE to repent of past wrongs and to change; we did! So don't rule out changes in you and in your boyfriend that can change your relationships with each other. But a key characteristic of a true believer is that he/she loses his or her self-centered nature and places Jesus Christ and the central focus of their life. Placing Jesus first opens the door to placing others before your own needs. When that change occurs, you WANT to follow God's perfect plan, as described in the Bible (like getting married and being faithful to one another and raising your children to first, love God and, second, to love other people (e.g. "your neighbor") as yourself. I will pray for you, your daughter and your boyfriend in hopes that you all will be open to the changes that are available when you decide to follow Jesus. I encourage you to attend a Bible-believing church for the kind of spiritual and emotional support that will help you through this time. Developing (or rekindling) a relationship with Jesus WILL make a difference in your current situation and in the rest of your lives but, most important, it will make a difference beyond the trials of this life.
Ephesians 5:25-30 - "Husbands, love your wives, just as Christ also loved the church and gave Himself up for her, so that He might sanctify her, having cleansed her by the washing of water with the word, that He might present to Himself the church in all her glory, having no spot or wrinkle or any such thing; but that she would be holy and blameless. So husbands ought also to love their own wives as their own bodies. He who loves his own wife loves himself; for no one ever hated his own flesh, but nourishes and cherishes it, just as Christ also does the church, because we are members of His body."