I dont think you are wrong too at all lovely
I have a difficult relationship with my dad and wish i'd done something similar many years ago... but seems no point at all now for us. however, recently, my step dad, who i love dearly, and who's been a brilliant dad to me, was really upsetting me, and i had no idea why.
i decided i disnt want to 'loose' another dad, so talked about it, on the phone a couple of days ago. He's been off with me for about months, well, since my Dd christening really . It wa a difficult conversation and I got very upset, as did he, as he'd no idea he'd hurt me so much. It had not been his intention.
It turned out, it was a BIG mis-understanding and could have been resolved at the time. I was disappointed he'd not told me about it at the time. and he is too, now. I'm still a bit cross with him, tbh that he had misjudged something i said to him al that time ago, and kept it going.
That said, I'm REALLY pleased i did talk to him.
I wish i could talk to my dad too, and often think i will. I have tried in the past and just not managed to get it all out.
I really think it cant do any harm to your situation. It might improve it, it may not, but whatever happens YOU will feel better becasue at least you have got it out in the open. maybe in time, it wil help to heal some old wounds...
I hope some other people can give you some input too. good luck
((((((((((((((((((hugs))))))))))))) heres a hug, as if your anything lke me, you probably really need it now.