Difficult to understand sentence. Please help me.

I recently had an arguement with my girlfriend (from Chihuahua, Mexico). We did not speak for days. I was happy when she called me and we talked it out. She followed up the call with a text message, but I cannot understand this one line. Is she telling me that she missed me, or is she glad that I missed her? Thank you for helping me.

I am supplying the entire sentence as I received it.

Me dio mucho gusto oir tú voz, sabes si, si te e extrañado mucho.

I was delighted to hear your voice, you know that. I’ve really missed you a lot.

The "e" is really "he". Maybe that was a source of confusion.

Thank you very much Gernt. I appreciate you taking the time to answer. Makes sense now. :)