有问题，因为I am sorry 后打逗号的话就表示已经是一个整句，没有连词连接它和下一句的话，后面就应该打句号。你应该说I'm sorry that I gave up。其实我知道你主要想问unwilling的部分，其实在主语未变时省去主语和be动词是可以的。所以稍微改下，该成I am sorry that I gave up, although a little unwilling. 就可以了。
用逗号分开，表示并列用现在时态，I am sorry, I give up, although I am a little unwilling to 或者，保持时态I am sorry that I gave up althought I was a little not willing to 最好这样说，I am sorry that I gave up althought I didnt want to
