Should I tell my boyfriend that I cheated?

If you really respect him, yes. He might react many ways, but if you really care for him, tell. And also, tell him why did you do it.

Yes you definitely should. Something like this, it won't be long until he finds out about it, and it will breaks his heart to know that you are not only cheating but also lying and trying to hide it from him. He will lost his trust and love to you

Honnesty is always the best policy but it's entirely up to you what you do in your relationship no one else can interfere in what goes on in the both of your lives

All situations are unique and complicated in their own ways. I would go with truth and honesty though towards others and yourself. So my answer is yes, definitely. He deserves to know and be given an active choice too.

Usually, yes. Being honest and truthful is very important in the maintenance of a relationship. Also, you have to put yourself in their shoes. Would you like to be lied to about something? Of course, if you want to avoid certain negative consequences such as a break up or a fight that you think would lead to nothing, you can hide it. It all depends on you and your situation. Would you do it again? Is there any unsual reasons? (etc.)

Every relationship is built on trust so you should. It's better if you tell him than for him to find out himself.

Yeah you should, you will feel better and coming with the truth it´s always better than keep a lie for yourself, also ask yourself why did you cheat and evaluate if you are feeling happy in this relationship!

Yes, you should. It won't only relief the burden for yourself, but it will also be the first step towards honesty.

Communication and honesty are the most important aspects of any relationships. If you don't tell him that you were unfaithful, it's very likely that he will find out anyway. And if you own up to what you did, and told him yourself, it will speak volumes on whether or not you value your relationship, as opposed to having him find out eventually on his own.

Yes. Give him the same respect you'd want from him. If he had cheated, you'd want him to be open with you about it.