Am I overreacting??

I need other moms opinions or want to know how other moms would react to this just to see if I’m being a bitch or overreacting? I really just need to vent because I’m so pissed off I’m shaking right now. My sons great aunt on his dads side has been making a plan with me for 4 weeks now to spend a day with him (he’s 7 months old) and I told her that was fine but me and his dad broke up because he has severe anger issues he kicked me and my son out of his house after threatening to shoot us all including himself in a fit of anger over me waking him up early for a doctors appointment. He tried to tell me I was not taking our son with me and told me he was going to take him from me and keep him at his house. Whenever his aunt text me about her day with him for like the 5th time last week I told her she could still see him but I explained what happened and told her if his dad was to show up at her house while she was watching him to PLEASE call me and absolutely do NOT let him leave with him because I do not trust him. (She lives within walking distance of where I’m at so I could get there ASAP in case of an emergency) She told me she would let me know and wouldn’t let that happen at her house blah blah blah then ended up canceling plans again all of a sudden after I told her that? Well now this week she text again about wanting to see him because she’s off work tomorrow I told her yeah that’s fine just let me know what time she wants to come get him then after the conversation is over she texts and says “let his dad know if you talk to him I moved my day with the baby to tomorrow” it confused me and I thought she threw that comment in being a smart ass because I specifically told her last week that was absolutely not aloud whatsoever and that pretty much made me think she’s been planning to sneak a visit in with him the whole time and that’s why she canceled last week when I said something about his dad being there. I text back and said “so was his dad supposed to be there to?” She then text back and said “No I’m just telling you if you was to talk to him let him know” she text again saying she “doesn’t care who gets butthurt over it” I don’t even know what all she said I didn’t read the whole message because I was already shaking by this point so I text her back and told her I’m definitely not “butthurt” but that is not aloud since it’s a genuine concern I have for MY child’s safety that I explained to her last week then she tells me she’s “not meaning me but she’s tired of everyone getting their panties in a wad every time she tries to spend time with my son” she obviously meant me because I’m the only one who’s been picky and set so many rules ONLY to protect my child and to me it’s sounds like his family are the ones butthurt about it. I feel they they honestly care about his psycho dad more than my baby because they would put him in literal danger just to sneak behind my back for him. I barely have any contact with his dad since he kicked us out but I have told him multiple times if he wants to see his son we can meet up somewhere with a professional so he can visit but he never wants to do that so I guess he’s got his family trying to set up secret visits for him? I have no idea but I turned my notifications off and will not be letting him go with her tomorrow I’m pretty close to just tell his whole family to fuck off at this point because they all side with him even when it comes to my child’s safety and try to be way to involved in the situation. Am I overreacting or am I making the right choice by not allowing him to go now?