Irene

Irene, short for Intelligence Relays Enhanced (with) Neural Encoding, is a cyborg designed to be Bob's love interest by Thaddeus Euphemism.

Appearance
Initially, Irene looked almost exactly like Bob, but with red lips and blonde "hair" that appeared to be in pigtails.

Then, she travelled across Canada for two years, altering her appearance. Now, she is slightly taller than Bob and has a more human-like physique. Her "hair" is now silver and comes out in lines behind her, her body appears to have the same design as Bob's limbs, as do her arms, but her legs are more like IBall's except with no "knees".

Like Bob, she has a brain in a transparent dome on top of her head, but it's unknown what, if any, other organs she has.

Unlike Bob, she owns "clothes" that she got when she updated herself that are made of molded plastic and are a pale pink colour: a crop top, a thong, and bands around her "elbows".

Personality
Irene is quite fiery and unpredictable. She and Bob have an unpredictable relationship: she insulted him, then they began dating, but broke up. Later, they met again and exchanged insults (Irene even sometimes used actual violence on Bob) but then they began dating again.

She is also very easily offended. For instance, when she tried wearing a skirt instead of her usual thong and Bob told her that she looked "almost like a lady", she actually hit him due to taking offence at the "almost".

Despite all the insults and violence she shows towards Bob, she really does care about him and does take the time to apologise for her actions. She may also return Bob's romantic feelings for him because she acted jealous when he pretended to flirt with his coworker Alice and they exchanged compliments in one strip.

Thaddeus and Bob attribute her moodiness to her being a woman, despite the fact that other women (e.g. Betty and Naomi) that they know do not have similar personalities. It is possible that they were speaking in jest.

Irene seems to be especially peeved by romantic cliches. For instance, when first activated, she told Bob not to make a joke about them being "made for each other", and when she was reunited with him, she told him not to ogle her body (despite being pleased that he noticed the modifications, even if it wasn't in the way she wanted). Despite this, she seems to be capable of romance, at least to some extent.

According to the creator, she wears a thong because she's "uninhibited", which is apparently a common trait among robots and cyborgs.