What should I do ?

I'm 27 weeks pregnant. I have a 14 month old daughter. She has always co-slept with me her whole life. It wasnt an issue until recently where I have been told I have SPD which is where the ligaments in the pelvis and hips loosen to quickly and cause lots of pain and discomfort. For my health I needed her out of my bed as I couldn't use my pregnancy pillow to support my hips which resulted in me not being able to look after her because it would take me an hour to get out of bed and I would be crying as I was trying to get out of bed which would distress her.

So I had a sleep expert come who helped me train my daughter to her bed. Everything was going great. She was sleeping through the night in her own bed and my hips weren't as bad as before I was able to keep going on. Well my boyfriend works 6 days a week and comes home one day a week.

Every night when I put her down she will cry but it's just due to how stubborn she is and the fact that he come and ruins the routine the moment he steps foot through the door. Every monday he comes and he just walks all over the routine and ignores all my pleas and fucks it up. So tonight I put her down she cried for 5 minutes and was gone. She has now woke up at 2:30 am.

He was about to go in and sleep in her bed with her which is the exact opposite of what the sleep expert said.

The night before he finished work at 11pm and he asked me to come get him which I had stopped doing because of the routine she has now but I did it anyway because I love him and I hadn't seen him in a week. Well he starts saying how I'm shit for picking him up. When he asked me to. Then I said she has to get in her Pj's and he is like no you have fucked her routine what's the point let her sleep in her track suit. So he cuddles her all night which is the worse thing he could possibly do because he is teaching her that daddy will always come if I cry which he wont and she is going to be so disappointed when he goes away again tomorrow.

So anyway shes woke up. I begged him not to go in that room. She can hear us whispering and arguing as he is saying "it's not her fault you cant handle two children" and "she just needs a cuddle. babys need love". I said to him "your going to break her heart tomorrow night when she wake up at 2:30am tomorrow night thinking her daddy is going to come and he isnt going to be there" so we go back forth for ages and I just snapped. I smacked his knee and I said "I hate you. Your ruining my life. Your hurting her more doing this than caring for her. And what about our son when he is born what's going to happen to him?" I also said that he could only see his daughter in the day because I couldn't cope with arguing with him every time he comes home about our daughter sleeping in her bed and the crying."

Well he stands up and calls me a fucking bitch and that I should kill myself. I said to him what about your son. Do you realise what you just said? Shall me and him both go die together ?

And he must repeated it telling me to kill myself as he left our bedroom and now hes in her bedroom cuddling her. ruining all the suffering and hard work it was for me to get her into her own bed.

I'm so frustrated and upset that he would say that. It makes me feel like he doesn't care about me or the baby just our daughter.

And I'm suppose to marry him on 26th june and I honestly just cant forgive him for telling me to kill myself when I'm pregnant with his child.

What am I suppose to do?