Am i in the wrong

Whenever we go out and i have been a bit low on money.. I ask my partner to pay for the cokes or something as i have no money! I pay for alot around the house that she doesnt. Including animals.

I have just had a big tax bill to pay for which is stressing me out. So today we went through McDonalds and we had to buy for her sister and mum too as you can't rock up to someone's house with food and eat it and not get them anything. So i said do you mind paying for it as i didnt have enough. She always cracks it.. always makes me feel like shit. Acts all shitty towards me. I have been feeling like this for a while.. so i told her about it makes me feel. Then she starts abusing me about it and saying im a joke, and that I'm emotionally abusing her by telling her how i felt.

We got to her mums and i said plz dnt go inside with out me as its awkward and they will know where fighting. So she slams my door. I then opened my car door and i put the maccas food on the ground nicely and i said here u go. As im not walking in with us like that.. she then chucks all 4 cokes at my car.. so i drove off

Now 4 hours later she is telling me that I'm disrespectful and disgusting and I'm not gods gift? All because i told her how i felt??

Please tell me.. am i in the wrong telling her how i feel? Even if she wasn't doing it intentionally? I didnt even yell? Jus said how it makes me feel. Cause she said it's all my fault basically