In most of the cases, if a word ends with consonant /z/ as z in zoo and the next one begins with /j/ sound as y in you. Native speakers tend to link the two sounds quite often. So far, I have heard two different ways to link the two sounds. Let's take he loves you as an example.
the word loves ends with /z/ sound and you begins with /j/ sound. I have heard there are two different ways to link them.
The first one is /hi-lʌv-zju/, and the second one is /hi-lʌv-ʒu/ which /z/ and /j/ was assimilated to /ʒ/ sound.
I know the assimilation always happened between /t/ or /d/ and /j/ sound, and they will make a /tʃ/ as ch in chat and /dʒ/ as j in job.
So, which linking between loves you is correct? Or, both of them are acceptable.