Hi nelliek
Welcome, and thank you for your post! I've been feeling like a bad mother because I'm really fighting short-temper and irritability with my children, but I've also been tapering off my medication. I have fleeting thoughts of sending them to live with their father or out on the street to fend for themselves because they've left a dirty dish on the counter, or a backpack spilling out in the middle of the hall, so thank you for bringing some perspective back.
It feels somewhat easier to cope when I remember that it's the chemicals in my brain, not my children, that are causing me to feel so prickly, and that it's my choice to taper off the drug. And remind myself to do the things that naturally stimulate my feel-good chemicals, like meditation or getting outside to garden.
Perhaps if you talk to your boyfriend about the effects of the medication, he'll be less likely to take your irritability personally and more likely to give you the support and understanding you need to get through this transition.
Good luck, with lots of empathy...