I'm in a relationship of 3 almost 4 years. We've had our ups and downs.. The most recent being he cheated on me while I was 6 months pregnant. Our son is now 4 months. We separated for almost two months and we were back together before baby was born. (I know, I know... just felt right at the time.) He truly is a great father, at times my heart was so full of joy, I felt truly happy. I gave him trust, I put forth my best efforts and so did he times 1000. I really wanted to keep my family together... but I think that was all just "Baby bliss". Nowadays, I still feel love for my boyfriend but it's just not the same. I want him to do great and succeed in his life... just not next to me. I feel this way because of what he did while carrying our child. He tells me I'm his world and he's so thankful for our son. He really has matured and changed these last few months. We can now communicate like 100%. Were a great team. I'm proud of him. I'm proud of our son. I still just... can't. Get. Over. The. Cheating. It still hurts. I told him I'd give him a chance. He passed my expectations by far. But I'm just not happy here and it's time for me to leave, which I am well capable of doing with baby. Any advice on how to make this break up easier? And transition into co-parents?

Update: Thank you ladies for all your kind words and insight. I finally decided that there was too much distrust and it hurt too much he cheated while I was pregnant. So I moved out on Monday, still settling into the new place. Set up a care schedule for the baby. Now to work on myself and stay focused. It hurts, I'm lonely but I feel with time, this will be the best decision for me. Thanks for the support!!