My therapist told me that he finds me attractive. I just was wondering is this normal and appropriate?

It depends on the context. If your therapist actually told you that he finds you attractive, that is not normal and it is not appropriate, and you could report him to the state licensing board (if you are in the US). If you were talking negatively about your looks, and your therapist re-assured you that you are attractive by society's standards, that's still not totally appropriate, but it's not as bad. Either way, your therapist should not make you feel uncomfortable. Report him if you want to. Find another therapist if you want to and are able to.