Friend Wants To Get Together Right Before My Wedding

Okay ladies- I need some advice here. A friend of mine and formerly college roommate is coming into town for my wedding which is next weekend (Jan 16). At the moment, I'm going a million miles a minute trying to make sure I've covered everything, haven't forgotten anything, pick up last minute things like seating chart, meet with coordinator, etc. My friend asked me yesterday in a kind of "poor me" way that she felt like she wouldn't get to spend much time with me over the wedding weekend (and in my head I was like well I don't usually expect to be able to spend much time with the bride or groom on their wedding weekend, does anyone???). So now I ask, AITA? She's going to be in town for two days before the wedding and over those two days I'm going to the dentist, getting nails done, finishing outfit, rehearsal, meeting with coordinator, etc. I really do not have time to spend to go hang out with her in the two days before I get married. Of course I will see her at the wedding, but there will be many people I have to talk to then. For context, this is a friendship that I'm not even sure I want to continue. She has a track record of losing all of her friendships due to selfishness but I've always hung on to our friendship out of wanting to be a loyal friend and not wanting to hurt her. Is it wrong/selfish of me not to be able to make one-on-one plans with her like she's asking?