I have to be honest. UF is by far the better school (and I really don't want to say that because I'm still waiting, and hope you pick FSU. )
However, you aren't alone. If you are indeed going to get married, you have to think as a family.
The 20K less debt (plus way more if you do well and threaten to leave, if they don’t up your scholarship) / chance for your husband to get into a Masters program, and the significantly greater amount of money he will make sooner rather than later because of that, less strain on your relationship, reality that you aren’t going to make more money because you went to UF and in fact could make more from FSU because of your relative strength compared to your peers, etc. All of this could literally/likely will, save you 100K, if you and your husband play it smart and efficient. 100k less debt is no joke. If you are from Florida, you know that you will be able to get a job, provided you work hard, and if you act in person the way you act on TLS, you will be loved anywhere you get hired (which will happen regardless of your choice between FSU and UF).
I’m not going to comment too much on Illinois. I know it’s already out of the picture (despite your protest). Your family, connections, and life will all be lost/changed significantly if you move to Illinois, and would quite frankly be a terrible business decision for you and your husband, and likely result in your relationships demise (a little strong lol).
Anyway, just know that whatever you pick, you will make it! Your attitude is priceless.
Edit: Most importantly, your future husband has needs. He needs to get into a Masters program ASAP. Unless, he is working at some other tight spot, which I doubt.