Am I overreacting or is this how she meant it?

Okay so something is wrong with my air conditioner and it’s bowing out heat.. it’s like 110 degrees where I’m at! So I told my mom where mawmaw said she don’t have anywhere for us to sleep so we can come there, and she goes “well y’all have to find somewhere to go” it’s me & my 1 year old and 5 month old.. That hurt my feelings so I said okay we will find somewhere and hung the phone up. I called and told my grandma and she called and asked her why we couldn’t come there and she said she didn’t mean it that way but she never offered for us to stay at her place. She have a 3 bedroom house and it’s literally just her and her husband that lives there! Am I wrong for getting mad at her?