It sounds a bit like a Balkan soap-opera: Some view the recent statements and actions of Montenegrin politicians towards Croatia to be "sychopantic". Meanwhile; like many a great soap-operas, this "love"; according to one commentator, is an "unrequited" one.
A few questions; that are perhaps too generic and broad to receive a proper answer:
(But I'll throw them out anyways)
1. The article alludes to the economic rationale behind Montenegro's new "relationship" (for lack of a better term) with Croatia; and some economic benefits to Montenegro. What benefits are there for Croatia?
2. The article also alludes to the relationship between Montenegro and Serbia. In a nutshell, what is the relationship like between Montenegro and Serbia; on both a state-state level; and general public opinion?
(and I realize this is an unbelievably broad question; with perhaps many exceptions and nuances)