I have been with my man for 3years and never met his mom or sisters. So his family was having a family reuntiuon and I was invited to go, but could not cuase of work and kids football. So he went by himself, he left on Sunday morning for a diffferent city and did not text me until Monday night that said I just charged my phone and ilove you and miss you so I left it alone

If you are happy in your relationship,I do not see this as a deal breaker.
Did you have any arrangement regarding how frequently he was to make contact with you?
It sounds like a simple misunderstanding and not a breach of fidelity.
It would seem to be a shame to toss a good relationship aside for this reason alone.

After a 3 year relationship, these small details cannot be the reason you want to break up.

Are there other details that we are missing?

You were invited to see his family but you were busy. So it's not like they do not want to meet you.

Furthermore, after a 3 year relationship, you should have a strong communication system. If you're unhappy about something then talk things out with him.

If your feelings for him have changed, then don't lead him on and let him go.

I think there is more than one concern here and you can correct me if I am wrong. One is that he didn't contact you right away and two is that you haven't met his family yet.
My take on this topic is that he very well may have had hard feelings given that you didn't attend the reunion with him and chose not to contact you. He could have brought someone else with. Only you know how you feel about the rest of your relationship. As always I think it is important to explain to him how you feel. 3 yrs is a long time not to take time to meet family. What is your concern and why would yoou consider leaving him?

I agree with the above, there has to be more to this story.

So he didn't text you right away, he did eventually, what's the big deal?