Have Relationship Questions? Ask a Counselor for Answers ASAP
It sounds like that the two of you had had some personal issues to be resolved him with his wife you with your ex etc. It may be wiser to take things slow this time as the two of you may get burned out (and he may be trying to avoid that by saying that he wants to leave his options open) On the other hand, if that means that he is not seeking commitment and if you are in fact seeking commitment and a long term relationship. you too may explore other options and see what makes you happy. After all, that is the goal- to be happy no matter if in a relationship that is serious, dating or still looking.