Help... 6 year relationship on the rocks

Ok this is a tricky one... About 6 years ago I met my boyfriend. We were both married but I am the only one with a child. He got divorced but I didn't until recently. I was afraid of what it would do to my son. We moved in together about 2 months after meeting. We had a great relationship up until about 5 months ago. He decided that he wanted to have female friends. He is a teacher and that's mainly who he works with. I'm a very jealous person but I agreed to work on it for him. However my gut told me something was up so I checked his phone and found a text about wanting another girl. I moved all my stuff out of our apartment and wanted to move on. But I just couldn't do it. We tried to work it out. Everything was going great and we were back to teying for a baby. Then again something stupid happens and he throws me to the curb. He says he loves me and is in love with me but doesn't want to commit to a relationship. He wants to spend time with me but refuses to let me stay over. The other day I was there and overheard him talking to another girl on the phone. I don't know what to do. I feel like I should forget about him but my heart won't let me. Help!