To end the friendship with my ex?

[nersaj]

So, he's not really an 'ex'. We dated for quite a while (didn't sleep together) before DP. We were friends before we dated and then went back into a friendship after we dated as it just didn't work. DP is fine with me being friends with this guy. He's had several relationships since we dated and it felt completely platonic.
I have been feeling down recently and a female friend cancelled my plans with her so me and said friend decided to just go out for a walk/drive and a catch up as it's been a month or two since we spoke properly. After about an hour, he made a move and tried to kiss me! I kissed him back (I don't even know why! I was in shock) for about 2 seconds before I pulled away and told him to bring me home and it's best if we don't talk at all anymore. It's so upsetting to lose this friendship over this as it means something to me but it doesn't feel right to carry on like it didn't happen.
AIBU to end the friendship after this? This is definitely what I feel needs to happen.
Should I tell DP??? I feel awful about it!

I would end the friendship. It doesn't sound like a real friendship anyway. He obviously still has feelings and maybe you do too if you kissed him back? Either way, its not an equal, platonic friendship.
It's not fair to your DP to keep seeing your " friend" now that you have kissed and a line has been crossed.
I can't imagine meeting up with any guys I've dated in the past once I had a serious partner.

I would end this friendship, it has crossed a line.
I would unsure if it's wise to tell your husband why you are ending this friendship, things have a habit of getting out though.
If it was me I would want to know, but your know your DH best.

Thank you for replying.
I'm just taken aback by it, I didn't expect it at all and it's not like friend doesn't know about DP.

Now the kiss has happened I don’t see how you can see him again without being disrespectful to your dp.

See him again and your saying despite having a dp it’s ok for him to kiss you.

You kissed him back so your just as bad really, your in a relationship you don’t kiss others

@PinkHeart5914 I fully agree and I'd disgusted with myself. The problems I'm having and the reason I'm down is problems in my relationship with DP (he still knew I was meeting male friend though) so I was all over the place. That's no excuse for even leaving it 2 seconds though!!!

You should tell your partner if you actually want an honest relationship. How would you feel if your partner kissed someone else? This 'friend' could easily go to your partner and tell him that he kissed you. That will look way worse on you.

You know yourself that you can't see him again as friends. Don't beat yourself up too much, you were at a low ebb and stopped the kiss quickly.

You have done absolutely nothing wrong OP. He kissed you and as soon as you got over the shock of it you stopped him. All you need to tell your partner, if anything, is that friend tried to kiss you so you feel like you have to end the friendship. Please don't beat yourself up about it, it's really not your fault!

Don't beat yourself up about it. Tell DP he tried to kiss you, you pulled away and that you won't seeing him again as you had no idea he still had romantic feelings towards you as in your mind it was only platonic.

Don't make things any harder for yourself. Why are you feeling down?

I don't think opposite sexes can be truly platonic friends. Very difficult with an ex. Why break up, if you still want to spend time together?

@Gth1234 it was more because we both decided that we were better off as friends because we had been friends prior to dating.