Should I reach out or move on?

Hi, I know this is kinda wild, but I have been in a dilemma for days now. Recently, there was a guy I was talking to, we met here on SpaceHey and decided to chat through WhatsApp since we can't send pictures here, and he wanted me to see his computer setup. And we just clicked real quick. Things progressed, it was good, but I told him lets get to know each other for 3 months and let see how things go which he agreed as he also likes me but he mentioned something like 'it feels forbidden to like me but he wanna do it anw' he was caring, he was very flirty, and he is the type to think ahead of his future, we both wanted 'date to marry', we pretty much have many similarities. ofc we also had some differences such as religion (same belief but just different practice) and difference in our nationality. A week passed he basically told me that he has been talking to another girl for 2 months they both like each other but nothing progressed between them. and since he also likes me so he is confused and troubled. I was really mad when he told me about it. knowing that even though nothing progressed between him and the other girl i know that there is emotional investment and he told me that they also talked about the future (religion stuff etc.) but when I asked him do they still talk he said yes but mostly about asking what he is doing and if the girl had problems. I was dissapointed since I really liked the guy and during the argument the tried to call me which i haven't answerewed cause i was on dnd (I also forgot to call him back) which is now on my mind like'what if i called him back?' would things be okay, are we gonna be together but at the same time why should I each out to him, when it seemed like i wasn't the girl he chose on his 'future wife compitition' so I'm really distraught my heart hurts so bad knowing this is like my first time being inlove with someone.