My girlfriend has a 1 year old baby, we been together for 8 months and her and the father been broken up for about 10 but they still be on the phone fighting. She says it cause the baby. She also says she don't want to be with him and she loves me. But it looks kind of different I don't know what to do?

If you really aren't sure I think you should talk to your girlfriend about it. She was always be tied to her baby's daddy because of the baby but you should trust her. All strong relationships are based on trust!!
Good luck!

If you can't trust her, then it will never work as trust and relationships go hand in hand. I can understand your point of view because I also don't like my fiancée talking to her ex, but she has 2 kids with him so I know they need too. Bring up your concerns with her, communication helps a lot, when I brought it up my partner was nice and understood and wants me to be present whenever she has to talk to him. Things can be solved easily with a few sentences to her and talking about it.

How involved is ex?? As Rome said, talking and listening to each other is the way to go, but you may be insecure because of something else. If she isn't doing anything to make you feel this way, it may be you that has the problem, and you really need to know where those feeling start, and why.

More background will help pin this down.