Forum

"I feel boring" is more correct, but that means that you feel like you are a boring person. I think you might want to use "I feel bored" instead (meaning that you are currently bored).
English

A female friend is simply a friend who is female, while a girlfriend is an intimate relationship.
English

That depends on how you start the letter. If it is Dear Sir, you end Yours Faithfully. If you start Dear Mr/Mrs then it is Yours Sincerely. Regards is less formal.
English

Yes, they can understand eachother perfectly, the only exception is an accent and a few words that are different between the two. Check it out here: https://www.boredpanda.com/british-american-english-differences-language/?utm_source=google&utm_medium=organic&utm_campaign=organic
English

A husband or wife is a legally recognised relationship which requires state registration. In British English, "spouse" technically means a wife or husband, but is normally used the same way as "partner", that is, to mean either a husband or a wife, or a long-term boyfriend or girlfriend or fiance. Boyfriend or girlfriend is then a shorter term and informal relationship (in the sense that there is no state recognition).
English

Technically "spouse" requires either a marriage or a common-law marriage (long-term relationship that is semi-recognised by some countries but lacks all the benefits of a formal marriage). However, it is often used in a more flexible sense to also include a long-term girlfriend or boyfriend.
English

There is no absolute right or wrong answer here. Personally, I would write it as "Alexis' boyfriend", however both are acceptable.
English

‘In the evening’ can be used when referring to one evening, e.g. I will meet you in the evening. ‘In the evenings’ or specifically the word ‘evenings’ is a used to refer to more than one evening, e.g. She spends the evenings watching television.
English

When somebody says something that is too funny and you laugh a lot at it, you say "you crack me up!".