Kelly Brook. Image from Zimbio.com
Kelly Brook and Danny Cipriani during happier times. Image from uk.omg.yahoo.com
Whilst Kelly could have been referring to her reported dalliance with Andy from Lawson, it is likely that she is reflecting on her relationship with Cipriani. Perhaps, in hindsight she thinks her previous relationship was based on lust, which made her feel like she had some sort of stability with her boyfriend, but in reflection it was all pretentious.
Falling in Lust can give you such a Delusional sense of Reality.