It's a misspelling of siento and anoche.

How are you, my butterfly. I'm sorry about last night. I love you.

Not I love you, is I want you. Only this one man could mess up a apology and me love him more for it. =)
He sido golpeado persiana por el Amor.

No, no. Te quiero is NOT "I want you." Sorry to disappoint you, but it's an extremely common expression that can be used to lovers, parents, children, grandparents, pets, etc.

I questioned him on Te Quiero, about 4 weeks ago. He said it means for him, I want you, not I love you.

My understanding is there are several meanings for Te Quiero. I don't think he loves me, ( yet ;o) I think maybe he is fascinated or infatuated.

Well, in English, "I want you" has only a sexual meaning, which would be more like "te deseo" in Spanish. While "te quiero" does mean "I love you," Spanish speakers tend to use it more loosely than we use its equivalent in English, so his use of this phrase doesn't necessarily mean that he is ready to tie the knot with you. It might be closer to translate it as "Love, (name)" in English, as we do in signing off letters to people we care about.

That's a relief, my knots done been tied, bled and charbroiled. I'm in no hurry to take that walk again.

One more thing, anoche should be one word, for last night.

Looks like your boyfriend is spelling phonetically, so watch for spelling mistakes with s/c/z, v/b, and h. If that makes sense.

I think I should get him a Spanish dictionary to go with the English one I already bought him :p

I found a really awesome English dictionary with both Spanish and English translations. Now I need to find one the opposite for me.