Ok, I'll try to make this short. The relationship between me and my dad has seriously deteriorated to the point where I'm bracing myself for writing him a letter, cutting him off for a season. We were very close as I was growing up (especially after my mother died) and after he married my step-mom, she destroyed our relationship. She forced him to choose sides, me or her and he chose her side (even when I came to him for help because she was physically abusing me). Since I was 19 (I'm 24 now), I've been living on my own and my dad and step-mom have gone back and forth about whether I'm welcome in the family or not (most often not). For my own psychological health (already have PTSD and a mild personality disorder, which I'm trying to fight), I've decided to cut him off for awhile.
Here's my question: regardless of whether I get the strength to send him the letter, should I have somebody else walk me down the aisle? I'm leaning toward having one of the extra goomsmen do it (or my uncle), because I don't even know if my dad will attend my wedding (my step-brother's is very very close to mine, might even be same day.). My dad has been very inconsistent with me, never calling, but telling me to "stay in touch". I am afraid to trust him to stick to his word because of all this BS. What would you guys do?