What does a tight/lingering hug from your ex mean?

xPurpleRosesx
So I was out with friends and me and my ex boyfriend have the same friend so he ofcourse was there too. We haven't seen each other for 2 months after we broke up. When he saw me he didn't say "Hi" or even acted like I was there at all. Untill I had to leave. They all went to the bus with me so they got to spend more time with me. I was a bit tipsy and suddenly I was in the mood of hugging people. I stood there with my arms wide waiting for a hug and he than walked up to me and gave me a tight hug for a good 5 to 6 seconds when we were done I still had my arms around his neck and he took his hands way from my hips for a tiny second like he was scared to hold me longer. But he put his hands back again on my hips and looked away from me I say he jaw tense than he looked at me and said "Did you get enough hugs?" I just nodded still looking at him than he said "I don't believe you" and huged me as tight as the first one... what does that mean?
What does a tight/lingering hug from your ex mean?
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