Relationships

Am I wrong or am I being rational?

So I've been recently injured at work and had to get surgery my girlfriend (of 2y) C. Was the first person I called and only person I wanted there at the hospital. She was there the whole time missed several days of work and is not used to seeing me in that kind of vulnerable state. So to say the least she was put though quite a bit of emotional turmoil. I felt bad and tried to not put any more on her after that found a ride to my first appointment when I was released so she could work and keep her mind off of me. Second appointment was coming up and she was breaking down in tears starting a week before being stressed about sole bread winner of the house and helping me around my days to days which I get so I asked around for another ride and got my mom to agree to take me (ps my mother an I don't have best relationship so C doesn't like her at all). I tell her and it blows up to a big fight about how I don't care and I'm going to leave her etc all the good stuff tells me that fine mom can take me but can't come in house or go back to the appointment room. I say otherwise and she gets mad and storms off to another room. Day of appointment mom drives 3 hrs to pick me up I let her for bathroom and then we leave for the appointment 1.5 hrs away we get there and the call my name mom gets up and walks in behind me I think hell no use of being an ass and telling her no so finish appointment and grab lunch and head home where C. Is off work and I warn of impending mom. Mom comes in uses bathroom leaves. I then tell C about everything. She then tells me I was wrong to let her in the house and the Dr office and that she should just leave since she can't trust me with my parents. I do not yet back and continuously say i am sorry i did what i thought was right but im sorry. am I wrong what should I have really done?
Am I wrong or am I being rational?
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