Little Issues

My partner and I recently moved in together. We have four dogs that we share on a week on-week off basis with her ex wife. I have never wanted anymore animals in my house but I have, with some anxiety, accepted all the dogs and their house training issues and other issues into the home and I’m giving them loads of love, attention, working on training them some. We go on hikes. It honestly hasn’t been too bad.
Recently I’ve noticed that my partner will get irritated with me. I’ll ask her to not take one of the dogs to the basement because my cat lives down there and I don’t want them learning where her food and dog door is because it will cause me issues with them trying to get in and out constantly and stealing her food. I didn’t personally think it was much to ask but she called me “extra” today for trying to set that boundary and said I was “being extra”. She’s also started getting annoyed with me sometimes when I get anxious or worry that I’ve done something wrong and ask how to fix it or ask if she’s upset with me. I can be annoying but I am battling some anxiety. But I am putting so much effort into this relationship. More than I ever have. And I want to make sure I’m doing it right and treating her right. Am I just being a little too much? Are these red flags I should be worried about? She has a short temper anyway and struggles with being annoyed very easily. And she will usually always find me and apologize afterwards. I’ve just noticed a big increase in these issues popping up recently and I’m pretty hurt about it all.