Aio or is this a issue

Right so, me (16F) and my boyfriend (17M who we'll call cam) have been together for about 6 months, (for some extra context I moved to his city almost 8 months ago so I have TWO friend groups) but during the start of the summer holidays my aunt (34F) had some really bad health issues and needed 24/7 care and my mum (44F) couldn't leave our pets alone for six weeks so she sent me, now my aunt has 5 kids under 8, twins girls who are 6, another girl who is 4 and another set of twins (one girl one boy) who are 1 and a half, so on top of caring for a ill woman I am caring for her kids and each kid has their own small pet?? So I have to care for 12 living stuff including myself. So obviously all of that has taken a toll on my mental health and I will admit my texts are kinda dry or snappy but I warned EVERYONE I know and no one had a problem but Cam, and he's always saying "oh I feel like you've changed" and "I think distance has ruined us and our relationship" or more bullshit like that. I would also like to say cam does absolutely NOTHING so he's got free time ALL THE TIME whereas I don't. Now I didn't think much of it I explained to him multiple times it was just exhaustion but it felt like it was going in one ear and out the other. Again, I didn't think much of it until three weeks into the holiday when one of my new friends messaged me saying "are you and cam still together" and I asked why she was asking and she said and I quote "his TIKTOK reposts were sad" so I went to have a look and it was some cringy depressing shit and it clocked to me that cam was sending her to message me and I confronted her and she admitted it, and I left it at that. I thought that would be it. Well I was WRONG, earlier this week my older friend texted me "are you mad at cam because he says you're ignoring him" well I wasn't I was mid text to cam when my friend texted me, I asked him if cam sent him and since he's one of my best friends and we consider eachother family he immediately admitted it and apologised saying he didn't want to get in the middle of anything and backed out, so I texted cam and we had a argument about it and cam apologised saying "I'm sorry please don't be mad at me I'm really sorry" and we left it at that, but now I'm thinking that I may have been overreacting... So AIO and any advice is welcome thank you ❤️🫶🏼