I think your boyfriend is the one to figure out what to do with his daughter if you have a job interview or a job, not you. Drop her off at his job for the hour or two. Do things because you want to do them. Don't wait for his appreciation. Sometimes when I do things and want them to go noticed, I may say to my husband, "how about a thank you?" He gets the point. We should appreciate what each other does, even little things. But, if he doesn't appreciate you in general, that is another problem. Again, it sounds more like a roomate thing. I am hearing that the daughter is the big problem right now. He isn't being fair by not defining how long she will be staying. Hmmmm, sounds like he might like it to be a permanent thing. It's a wonderful thing for a parent and child to be close and bonded. Sometimes we can get more attached to our kids because they are a part of us and we are very responsible for them. It's ok if you aren't ready for this in your relationship. Understandable. You can tell him about that, but don't expect him to understand or accept that. He may choose her. Little girls can be sweet. I have two grown sons and would have loved a daughter. Is there a possibility you can stop seeing her as competition and learn to enjoy her? You can take her shopping, re-live your little girlhood. You may grow to love her too. Most likely, the more love you show her, the more he will love you. But, hey, if you are not ready for this in your heart and need more man time, that is up for you to decide. Make a decision and go with it. Don't feel guilty. I am sure you will meet someone more compatible. Give it some deep thought. Good luck. You are not wrong in your feelings. It's what you are feeling and you have to act on it.