Answer: I will try to do the best I can to finish the project
Explanation: I don't need to wait for her to do the project because is going to affect my grades but because in this case I just have two days to do the project I will do my best to finish it. If I don't have much of the project done I will tell the teacher about it and see if I can get a few days. If the teacher gives me some days to do it later I will sit with my friend and will tell her what's going on, the words I would use are:
"Listen, I know you are dating someone but school is important and we need to finish this. if you are not going to help me to do the project I will do it on my own but I won't add your name, is not fair that you are having fun and I have to do all the work".
Is not because I am a bad friend but there are responsibilities and when it comes to school is first. Boyfriends come and go but if I don't do my project that will affect me in the future.