Hi Denis, I agree with art - both your sentences are correct, and in both examples the words are being used as conjunctions and they are interchangeable. However, 'although' is a little more formal than 'though', and would be preferred in an essay, particularly when used at the beginning of a sentence. Just make sure you don't try to use 'although' at the end of a sentence: 'We had pizza for dinner - I didn't finish though' (Here, 'though' is functioning as an adverb and cannot be replaced by the conjunction 'although'.) Here's a good link with a practice test: http://speakspeak.com/confusing-words/although-though-difference

Can I first correct an important mistake about your first sentence? You could use either 'Even though' or 'Although' in this sentence, but NOT Despite. Despite is a preposition, not a conjunction, so it needs to be followed by a noun (eg despite the weather, despite the price) . If you wanted to use 'despite' in this sentence you would need to say 'Despite the fact that I love you'. 'In spite of' would work the same way. Please note - this is a far more important structural point to understand than any potential difference between 'although' and 'though'. In fact, there is no significant difference between though, even though, and although. They can be used interchangeably, depending on what sounds best. We tend to use 'though' more in spoken English, often adding 'even' for emphasis. And you are right that we tend to put 'although' at the beginning of sentences rather than the middle. For your second sentence, I think that 'even though' would be the most natural. 'Even though' sounds fine at the beginning or the end. The only time that they are not interchangeable is when 'though' means 'however'. For example: John's a bright pupil. He's often a bit lazy, though. This is a very common use of 'though', both in spoken language and in informal written language. You can't use 'although' in this situation. I hope that anwers your question.

both sentences look correct