Перевод - Арабский-Английский - دعني احبك هاذا ما استطيع فعله

Let me love you, this is what I can do.

Well if it was
دعني احبك. هاذا ما استطيع فعله
I would've written it the way you suggested nadjet.
but for the lack of punctuation I assumed the following:
دعني احبك فاهذا ما استطيع فعله

what about" Let me love you, this is the less I can do"

who knows, may be it's all she/he can do! it's not mentioned there!

لأن هذا

Hello Hamza
You wrote "...because this is..."
in English, I believe "because" and "for" are interchangeable. and that's what I did.
Personally, I don't like the word "because" and I try to use "for" where ever I can.