<human>: Can you summarize the given text in a few sentences?

I met a couple about a week ago and we became quick friends. A couple days after I met them, the people they were staying with decided they wanted their house back and kicked them out that night. They are from another state and know no one in the area, and they have a 5 month old son, so my roommate and I agreed to let them stay with us for a couple days. I've helped them call around to shelters in the area and most are full. The one's that have room want paperwork like the baby's birth certificate which is in their home state. 

The reason I'm asking for advice is they've become a bit of an inconvenience in the last couple days. They've helped out with food and toilet paper and things like that, but the baby is loud and they argue a lot and have woken up my daughter and my roommate a few times. The part that worries me the most is that he is short with the baby and she hits him a lot (the bf, not the baby). I understand getting frustrated when you're tired and a baby is screaming, but this morning I saw him get loud and speak loudly (not exactly yelling, but almost) to the baby telling him to be quiet, and then he put his hand over the baby's mouth. When the gf woke up, they started fighting and she punched him (I don't remember why), stopped to argue and they both called each other names, then she punched him a few more times, he punched her in the arm a couple times, they stopped to argue some more, then she punched him several more times and he got up and came to sit at the table with me. He said something about how he was tired of her always hitting him and he didn't like being abused, and she mocked him saying "oh yeah, you're SO abused". 

Anyways, I'm not sure what to do. They have nowhere to go so I don't want to tell them to just leave, and I don't know how much me talking to them is going to help. What do you suggest?
<bot>: Let some friends stay with us, she is abusive towards him and he is not gentle with the baby. What do I do?