My Boston terrier is very well behaved and was actually really easy to house train. About 2 months ago we started trialing her in the house on her own ( she was 7months old. She started peeing on the couch so I assumed we were just leaving her alone for too long. So we decided to only leave her loose ( out of her crate) for no more than 4 hours. That was working but she still seems to pee on the couch frequently now. She never has accidents when we r home and prolly hasn't in like 5 months. What can I do? I feel bad about putting her in the crate for 8 hours while I work but I also don't want my furniture ruined!!!!