DEAR ABBY: My boyfriend of several years, “Guy,” often asks me to take a trip with him. I have researched accommodations at the suggested destinations, only to have him say they are too pricey. Thus, we never go anywhere, although he could easily afford it. Now his brother (whom I’ve never met) has suggested a family cruise and suggested that Guy bring along his ex-wife, who is in the early stages of dementia. Guy has been divorced from her for decades. I haven’t said anything to him about this,