Guy's Behavior

My boyfriend is constantly talking to other girls online and when I get jealous he stops talking to me for days and calls me crazy?

We have a long-term relationship over a year and he is constantly making me feel jealous and insecure. He still talks to his ex almost every day, they split up 10 years ago and recently started talking again, he says they are friends and I cannot stop him texting her. He also has about 3 other girls that he is chatting with all day and he says they are his friends too. He adds female friends on social media frequently and even goes for coffee with them. He met a girl recently (he told me she has a boyfriend) and they went the two of them for coffee as friends. When we argued about the fact the he prefers to talk to other girls instead of me all the time he said that I am boring and that they are his friends and I cannot stop him. He never reassures me that he loves me, or even tell me that he loves me. I told him when I feel jealous the only thing I need to hear is that he loves me but he refused to do that. He tells me I am crazy for being jealous over all these girls and that I put pressure on him and he stops talking to me for several days. I just keep questioning myself? I am crazy, or being pathologically jealous, he calls me exactly that and I am starting to feel like I don't know myself. Guys do you have any thoughts? Because I don't feel it is normal to take it so personally that your girlfriend is jealous so that you stop talking to her.
My boyfriend is constantly talking to other girls online and when I get jealous he stops talking to me for days and calls me crazy?
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