That kiss makes me confuse

Hi, Im teeng, 25 years and now in a happy relationship with my boyfriend of more than 2 years. Me and my boyfriend had form a circle of great friendship together with our best friends and the two where together as well. we're happy couples enjoying each other's company, some might think the four of us are siblings. It was this saturday night hung out that offer great confusion on me, me and my guy friend go for a walk to buy drinks and food, we're both a little dizzy and drunk. As we walk going back the venue, he hold my hand and ask me, "why we're not together,why he was not able to court me, why we didn't make to a point to be in romantic relationship, even though from the start we both like each other so much.?? I don't know how to react, I was surprise for I thought we had forgot all this attraction because we are both on happy relationship now. He hug and kiss me "a kiss that I'd keep on longing for for a long time from my boyfriend" . We both cry, asking why this was just by now? Why he let us both gone through all the complications in our present relationship? We decided not to pursue this, for many feeling are at risk, and our friendship as well. And we both wish to be together in next life, if there is. MY PROBLEM IS I can't forget that KISS, I keep on remembering it at work, at home or even I'm at sleep, and i feel guilty about it.

be honest do you have feelings for this guy,if yes then you must pursue him,if not then forget about the friend