Additionaly, if he ends up comitting suicide can the cause of it be
atributted to her? There was no blackmail involved from either sides,
he was known to be suicidal before they met and she has talked him out
of doing it and been supportive many times. Can it be a crime to break
up/cut contact with someone suicidal in general?
While there are some isolated cases of people in the U.S. being held responsible for causing a suicide through flagrantly malicious online activity intended to urge someone to commit suicide, these cases are extremely rare.
The likelihood that the Slovak or the Egyptian legal system would consider interacting with someone in a manner that might tip them over the edge to be legally sanctionable acts that caused suicide, especially in the absence of such calculated malice, are even lower, especially, fairly or not, in the case of a young man who commits suicide. Neither of these legal systems tends to be as "delicate" in policing emotional harm as those the U.S., for example, especially when it involves emotional harm to men.
Egypt, for example, does not make instigating suicide a crime as some other countries do. In Slovakia, there is such a crime, but is it doubtful that these circumstances would qualify. Under Section 154 of the Slovakian penal code, the following offense (as translated by a Wikipedia contributor at the same link) states:
Participating in a Suicide
(1) Any person who incites another person to committing suicide, or
helps him to commit suicide, shall, if at least a suicide attempt
takes place, be liable to a term of imprisonment of between six months and three years.
(2) The offender shall be liable to a term of imprisonment of three to
eight years if he commits the offence referred to in paragraph 1 a)
acting in a more serious manner, b) against a protected person, or c)
by reason of specific motivation.
Inciting someone to suicide is far more than not properly considering someone else's feelings in the context of a remote romantic relationship. It is actually egging someone on to kill themselves.
If the young man committed suicide, this might lead to young woman to feel moral guilt, but is unlikely to give rise to legal charges.
Some sort of extralegal effort to secure revenge on the part of a family member or close friend of the young man, if he committed suicide, would be more plausible.
For example, I could imagine such a person trying to carry out some sort of revenge porn retaliation that would as a practical matter be very difficult to shut down with the means of the legal system. But, as horrible as that would be, it probably wouldn't gain all that much traction. The online world chases extremes in pornography and normally doesn't have much appetite for a few risque nudes of an eighteen year old women which are dime a dozen in the online pornography world.
My question is can she face any charges for this? She never kept any
pictures and they both cut all sexual contact upon finding out.
This seems unlikely, but probably not impossible. Laws against online pornography are often written with an eighteen year old cutoff age even when the age of consent is much lower to actually have sex, in part reflecting a distinction between potentially commercial sexual materials and non-commercial ones.
Still, realistically, the young man in Egypt is far more likely to face trouble under Egyptian prohibitions against pornography involving adults, or other Egyptian laws, than the young woman in Slovakia is to face consequences of any kind under either Egyptian or Slovak laws.
Assuming, as is likely, that the young woman is not Muslim and that he is Muslim, he could also face some manner of religiously oriented sanction if he said anything to her indicating doubt in Islam - even death - if he, for example, secretly confessed to her that he was an atheist or agnostic or would like to convert to Christianity, for example.
The Slovak legal system, in contrast, wouldn't care at all about that kind of interaction and wouldn't extradite someone to Egypt in connection with an offense like that.
Child pornography laws are viewed by prosecuting authorities as primarily a means by which girls and perhaps gay men are exploited, not as means of preventing harm to heterosexual men, and the stereotypes about who is harmed in both Slovak and Egyptian culture work to the Slovak young woman's advantage. Few authorities would even think to conceptualize the case as a harm to the Egyptian young man that needs to be vindicated with a criminal prosecution. The man himself would surely urge authorities not to do so as the harm to him of such a prosecution would exceed any benefit he would receive from it.
Extradition to Egyptian officials is something that is usually available only if (1) the offense is quite serious, and (2) the punishment in Egypt is more or less comparable to the punishment in Slovakia for the same offense. These two conditions are unlikely to be met, and extradition is a remedy used sparingly even when it is legally available under a treaty between the countries involved.
Also, of course, there is the practical reality that none of this material is likely to make it into the hands of the authorities, and that even if it did, it would not appear very blameworthy to an extent that would justify a criminal prosecution in a marginal case.
Conclusion
The young woman needs emotional support and reassurance that this situation is unlikely to have dire consequences as heart-breaking and embarrassing as it might be. Her life is not going to be over, no matter what happens.
How it would be best for her to interact with the young man is more of a relationship issue and a moral issue than it is a legal one.