Annoyed / disrespectful

My bf of almost three years is a sweetheart and treats me well. he’s very thoughtful and really tries hard. but lately, he’s been getting less patient with me and also he’s been a lot more comfortable disagreeing with my family. for example, he wants to come to my house during the week and I said my brother will be working from home and I don’t want to disturb him, so let’s do it another day. my bf said he wouldn’t be loud or an annoyance and that it’s not a big deal. idk? I kinda feel like he’s been pushing a bit of a disrespectful boundary. this is just one example. maybe he’s just comfortable with me now but I feel really sad at how he’s been seemingly getting more easily annoyed with me. it makes me so sad :( what do y’all think?