Am i over reacting?

Our dog has recently got fleas, hes got alot of allergys so cant have alot of the stuff recommended, so i have to bath&comb him with flea shampoo to get rid, im currently 38weeks pregnant so cant even bend down to pick something up, let alone bend down and wash a small dog in the bath, my partner refuses to do it as he is my dog. So until his fleas are gone ive made it perfectly clear to everyone he wont be aloud on the furniture, so my partner has just got in, took the dog on the sofa, after i said not too and held onto him for dear life the whole time scratching him and hugging him ect, i told him multiple times to get him down, he then turnt spiteful so i went to pick the dog up and put him on the floor, he then clung onto him saying he said he can be on the sofa (baring in mind im the one who gets bitten not him) so i tryed to pick up the dog again, my partner then grabbed my arm so hard and squeezed it, hurt so bad i was brought to tears infront of our two year old while still holding onto the dog saying im not doing it for the fleas, im doing it to be spiteful to the dog. he is now not talking to me, its been half an hour and i still have a hand mark on my arm... am i over reacting about the dog? I must admit i did grab the dog a few times and try and pry him from my partners hands which i feel very guilty about incase i hurt him....