Boyfriend or Returning husband?

The reason we have words like "adultery" is because there are apparently people in this world, like you, who can't seem to grasp the simple concept that married people shouldn't have with people they're not married to. What you should do is obvious: dump your boyfriend. You are married. While yes, I agree with you that your husband has done wrong by abandoning you on multiple occasions, that doesn't excuse you from the fact that you should have learned in kindergarten that two wrongs don't make a right.