We are not good at giving relationship advice - but if the facts are exactly what you claim, there doesn't seem to be much to look forward to if this is how he repays your generosity.
Regarding the charges and the potential plea, it certainly sounds serious and nothing to dismiss. There are components to consider in answering whether "he'll really cop that much time", what is his criminal history? does he have prior convictions? does he have money to get a REAL trial lawyer or is he using a public defender? Getting the bond lowered is a good sign that it might not end up at 25 years, but without knowing the other issues surrounding his history we cannot guess at an outcome.
https://www.inmateaid.com/ask-the-inmate/should-i-ride-out-this-long-sentence-with-my-fiance.amp#answer
Accepted Answer Date Created: February 20,2014