あなたからメールが来てると嬉しいって英語でなんて言うの？

1) It makes me happy to see a text from you.
（あなたからメールが来てると嬉しくなる）
Makes me happy は「私を喜ばせる」という意味なので、to see a text from you、つまり、あなたからのメールが来てるのを見ると私は嬉しくなる、という意味になります。ちなみにメールは直訳するとmail ですが、こちらは郵便の mail に英語だとなってしまうので、携帯のメッセージは textと言います。emailとかであればそのままemailでも良いですし、messageまたは text messageとも言えます。

2) I love waking up to see a message from you.
（起きてあなたからのメッセージを見るのが大好き）
今後もっと彼にメールを送ってもらえるようになるかもしれないような言い方です！メッセージを見るのが大好きだよ、という感じです。

３）I am glad to hear from you.
これはビジネスとかもっと無難なシチュエーションでも使えます。彼氏に対してはちょっと普通すぎるかもしれないが、彼氏以外の誰かから「メールありがとう！」と言いたい時に使えます。ご参考に。

＜ボキャブラリー＞
it makes me happy = 嬉しくなる
text = メッセージ
from you = あなたからの
hear from ... = 〜から連絡がある

1) Whenever you take the time to send me an email or text, it fills me with happiness.

• In this sentence, you're telling your boyfriend that at any point of the day or night that you receive a message from him, it causes the feeling of happiness to increase in you. You're telling him you get excited about it.

2) It makes my day to receive a text or an email from you. It's nice to know you're thinking about me.

• In this sentence the usage of "It makes my day" tells the other person that your day just got instantly better after you received a message or email from them. When you say "It's nice to know you're thinking about me", you're telling your boyfriend that you get happy when you know he has you in his mind.

There are many ways to express happiness at receiving a message from a boyfriend, the most simplistic being:
- I am always so happy when I see you've sent me a message!
- I love it when you send me messages, it makes me so happy!

We love getting messages from our loved ones. Especially if it's from someone close to us, like a girlfriend or boyfriend. It makes us feel like we are loved. We can use either of these two sentences in this informal situation. Saying thank you as well is a good option.

If you would like to explain to your boyfriend that you get very happy when you receive a text message from them, you can say something like "I love getting text messages and emails from you because they make me really happy.". Using the word "happy" in your sentence is very important to show someone how you feel about something.

When you want to explain to your boyfriend that it makes you happy when you see a text or an email from you; you may explain this in the following ways:
-I get really happy when I get a text or an email from you
-Your emails and texts make me really happy

If you want to let someone know, a boyfriend or girlfriend, that every time they send you a message/ email or whatever, that it makes you happy, then you can say one of these two sentences.

For example.
I saw you message earlier.
Great.
Whenever I see a message from you I am happy.
I feel the same.

I hope this helps.
Have a great day.
Will.

Since you are talking to your boyfriend you may want to flirt with him. Flirting means to behave in playful manner towards someone you are sexually attracted to. You can use the following expressions to show them that you love them dearly:
-fall in love with you all over again
-fall head over heels

When we say "blush with happiness", it means that we looked flushed, we glow because we are happy. If you use the expression that it "puts a smile on my dial", it means that it makes you smile because you are happy. You could also just plainly say that receiving a text/email from him makes you happy, as in sentence 3. Hope this helps! Thank you fro your question.

Situations where this word/phrase is used: social, informal, romantic, relationships, close friends, lovers, family.
Type of word/phrase: standard language
Example of this word/phrase:
"I'm always so happy to get your mail!"

You light up my world, I feel really happy when I receive a message from you. This is a good way to express affection towards your boyfriend while letting him know how you feel when you receive a message from him.