<human>: I've been with this girl for almost a year, things have usually been pretty good except she tends to be quite clingy when i am unable to see her, 99% of the time due to university assignments etc. which often causes fights. When i place priorities over her she doesn't seem to take it very well, usually claiming i just don't want to see her whereas in reality i'm trying to keep my grades up.

Anyway the problem i'm asking about is that she finds giving compliments to workers, friends, people i'm generally close with is entirely unacceptable. She claims that the only person i should compliment is her, anybody else i compliment i supposedly intend to sleep with. 

I'm a pretty happy person and have no problems giving compliments out to people, particularly if i feel they deserve one. These compliments are often along the line of "Hey i like your glasses" or "Your hair looks good today". Nothing over the top. All of the people receiving compliments are either friends or workers and i'm not giving them out every day. From my perspective if somebody did their hair/makeup, got a new piece of clothing they are probably looking for somebody to say it looks good. I'm failing to see how little compliments cause major issues with my girlfriend.

To her this supposedly gives her a reason to slap, yell at or refuse to see me/text until i apologize for "complimenting other people". She thinks i want to cheat on her because of this and has even resulted to cutting herself. Eventually she calms down and comes back to me, without me apologizing because i believe its childish and immature. I've told her this and i got slapped. 

I don't want to end things because every other aspect in our relationship is perfect.

Can you succinctly summarize the text in 1-3 sentences?
<bot>: How can i explain to my girlfriend that she is acting immature and me complimenting other people does not mean i intend to cheat