Do not hide your secret and assume that one day you will not be expose , tell the person you love what is actually going on in your life both the good and bad side and be ready to expect anger , annoyance and disappointment.
Now you are free and your conscience is clear and you can't communicate freely without guilt , lies and pretense , if you don't love the person any longer , you are not comfortable say your mind and move on.
It is a difficult process to be honest to those you love , it took me a month to say thee truth to him , I have my regret and I have learnt from my mistake but I won't accept being judge, condemn because none of us is perfect , we are striving to be a better version of ourselves.