Hi. I know how upsetting this may be, but try and remember how recent this is for both of you and so both of you come with a past of ex's and friends, etc. You both like each other and that is established. I would try as best you can to trust what he says and trust what you are both beginning to feel for one another and let things play out. If he wanted to be with her he would...so rely on the fact that they aren't together. If you bolt now, then you lose the opportunity to ever really see if things could have developed more deeply. Stay the course, trust him and yourself and let things be without threatening to stop seeing him as that doesn't get you what you want and that is to be with him and see where this is going.
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