Если Вы на что‑то обиделись, скажите мне об этом прямо, и мы быстро поймём друг друга.

Capitalized Вы is a polite, formal way to address one person in writing.

• Вы can mean either you (plural) or you (formal singular)
• When writing to one person respectfully, Russian often capitalizes it: Вы, Вас, Вам, etc.
• If this were informal singular, the sentence would use ты forms instead:
  • Если ты на что-то обиделся / обиделась, скажи мне об этом прямо...

So in this sentence, Вы most likely means one person addressed politely, not necessarily several people.

Because formal Вы uses the same verb forms as plural you.

So even when speaking politely to one person, Russian grammar treats Вы as plural for agreement:

• Вы обиделись
• Вы сказали
• Вы хотите

That is why the past tense form is обиделись, not a singular form.

Обидеться means to take offense, to feel hurt, or to get offended.

So Если Вы на что-то обиделись... means something like:

• If something offended you
• If you took offense at something
• If you were upset by something

It is the past tense of the perfective verb обидеться.

The verb is also reflexive because it ends in -ся.

Because the verb обидеться на + accusative means to be offended by / at something or someone.

So Russian uses the preposition на here:

• обидеться на шутку = to take offense at a joke
• обидеться на слова = to be offended by some words
• обидеться на что-то = to be offended by something

This is just the normal pattern the verb requires.

Что-то means something.

It is built from:

• что = what
• -то = a particle that makes it indefinite

So:

• что = what
• что-то = something

The hyphen is standard Russian spelling for this kind of indefinite pronoun:

• кто-то = someone
• где-то = somewhere
• когда-то = sometime

Because об этом means about it / about that, and it refers back to whatever caused the offense.

The structure is:

• Если Вы на что-то обиделись = If you got offended by something
• скажите мне об этом прямо = tell me about it directly

Here об этом is the prepositional form after о / об:

• об этом = about this / about that / about it

Russian often avoids repeating the same noun or phrase and uses об этом very naturally.

Because об is a variant of о used before certain sounds to make pronunciation easier.

Compare:

• о книге = about a book
• о нём = about him
• об этом = about this / about it

Before words beginning with э, Russian normally uses об rather than о.

So об этом is the correct form.

Because скажите is the imperative of сказать, which is usually the natural choice for say / tell when asking for one complete action.

Here the speaker means:

• Tell me
• Go ahead and say it

That is why the perfective verb сказать is used:

• скажите = say / tell

If you used говорите, it would come from говорить, which is imperfective and often suggests ongoing speaking or a general instruction. In this sentence, скажите sounds more natural because the speaker wants one clear, definite response.

Because сказать кому? takes the dative case for the person you tell something to.

So:

• сказать мне = tell me
• сказать вам = tell you
• сказать ему = tell him

In this sentence:

• скажите мне об этом = tell me about it

So мне is dative because it is the indirect object.

Here прямо means directly, plainly, or frankly.

So скажите мне об этом прямо means:

• tell me about it directly
• tell me plainly
• be straightforward with me

It does not mean physically straight in this sentence. It describes the manner of speaking: open, honest, not indirect.

Because поймём is from the perfective verb понять.

In Russian, perfective verbs do not normally have a true present tense. Their non-past forms usually express the future.

So:

• понимаем = we understand / we are understanding now or generally
• поймём = we will understand

That is why:

• мы быстро поймём друг друга = we will quickly understand each other

Друг друга means each other.

It is a fixed reciprocal expression in Russian. Its form changes depending on case.

Here it is the object of поймём, so it appears as:

• поймём друг друга = we will understand each other

You can think of it as a special pronoun-like phrase meaning mutual action between two people or groups.

Because и here joins two full clauses:

1. скажите мне об этом прямо
2. мы быстро поймём друг друга

In Russian, when и connects independent clauses with their own grammatical centers, a comma is often used.

So the comma before и is normal punctuation here.

Yes. The sentence sounds polite, calm, and constructive.

That comes from several things:

• Вы instead of ты
• скажите as a polite imperative
• the overall wording is direct but not aggressive
• мы быстро поймём друг друга sounds cooperative: we’ll understand each other quickly

So the tone is respectful and encouraging, not accusatory.