Should I keep dating this guy or move on?

So I have been with this guy for 5 years, we had a disagreement because I asked him one question. He didn't speak to me for 6 weeks then said he didn't remember my number. He broke up with me already, even took almost 3 months break. During the 6 weeks of no contact, I met a guy that seems really nice, we went out for drinks a few times. Now I am confused if i should break it off and move on trying to know this guy or just look past the situation and stay with my boyfriend?

Should I keep dating this guy or move on?
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