On the assumption this is a guy you have been dating, this is not a good sign.

In kissing his ex, there are strong odds he has feelings for her.

Here come the excuses.

He tells you that kissing his ex was a mistake.

He tells you it was something that happened in the spur of the moment and it won’t happen again.

The fact that he has done this once typically means he is capable of doing this again.

This is where you have to make a decision.

Should you stop dating or talking to this guy, or should you give him another chance?

Ask yourself why you are with him in the first place.

Is it out of desperate emotional need?

This is when you are more susceptible to staying in a relationship that isn’t right for you.

A weak sense of personal identity keeps you in a relationship with a guy like this, fearing the thought of being alone.

A strong sense of personal identity keeps you from staying in an unhealthy relationship out of the fear of being alone.

Which one are you?

Once you have the answer, you know where you stand emotionally and whether you can easily break away.

When you feel too much of an emotional connection to him, you are too emotionally caught up in the moment, and this makes it harder for you to think this through with a clear head.

This is why it is best that you go away for a while or cut off communication for a while, so that you can think.

In a context where this is a guy you have gone on merely a few dates with, you are better off ending the relationship now, before deeper feelings set in.

Conversely, when this is a guy you have been seeing for a while, it’s time to assess your relationship on a deeper level.

Think back to how he has behaved up until this moment.

Maybe he has been a good boyfriend to you and treated you right.

You feel a much stronger emotional connection to him due to this.

Don’t let this cloud your judgment.

If you have built up a relationship with him to this point, you are better off breaking it off for a while and becoming friends instead.

Observe how he behaves during this time to determine whether he is worth dating again.

A breakup of a relationship leads to clarity.

He has the space to look back on what he did and regrets it, realizing he kissed his ex because he had a fight with you on the day of and was emotionally weak.

There is no excuse for infidelity.

Realizing the folly of what he did and regretting it doesn’t absolve him from what he did.

Nevertheless, in deeming he is regretful, choosing whether or not to get back into a romantic relationship with him is your call.

Once you make your move, stay with it.

Be resolute in what you believe is the right course of action from here on out.