I recently (less then a week) got dumped by my gf. I'm in Florida and she's in Georgia. I have the child here with me and he's 16months of age. We broke up on great terms. I mean GREAT. Recently I found out while she's up there that someone's been telling her and manipulating her into hating me, being irrational with me, and now I feel they have her trying to take my son and I heard this from her own family, but I cannot name them as resources later on because I told them it's confident. She's not being herself and she brick-walls any attempt to fix or handle things or she hangs up. She hung up when I spoke about handling custody of our son and wouldn't agree to not seeing him but every other month. I love him too much and plan to fight for her to move back down to her father's here in Florida so we can do a bi-weekly custody. They just moved to a bigger house in GA and have yet to get me a contact number so I keep calling the old number. I can't get a hold of any of them and she has yet to call me and I keep hearing that she's with another guy who's talking her into doing it and that I believe is saying things to scare her into believing that I'll take him. I want it fair for our child and both parties. Now I hear things like she might be planning to not call and just to come get him and leave. I want to work this out in a civil manner because we both love him and it's not fair to him to be drug through this. She's supposed to show up on my birthday for her stuff and our child (April 10th).
Questions:
Did her leaving the state constitute as abandonment?
Does possession of the child mean I have him until other legal arrangements are made and can I keep him here so she doesn't run off with my son to god knows where?
What are some things I can do about all of this?
What does temporary residential custody do and what does it take to get it?

Any info would be great.. Thanks!