Relationship Court: Should this dad tell his daughter how he really feels about her boyfriend?

Should this Dad keep his mouth shut, or tell his daughter ho he really feels?

Ahoy Brian Ali & Justin I know you guys are busy so I will just get right to it. I hate hate hate my daughters boyfriend. He’s cheated on her, he’s relapsed a couple times and he treats her like crap. He can’t keep a job, he’s the definition of a loser. Last night my daughter calls me all excited because he proposed to her. She knows I’m not a huge fan of him but I’ve never fully told her my feelings and don’t know if I should. When I was raising her I knew someday she would meet somebody and get married but never in a million years did I think it would be with someone like him. Have I mentioned that I hate him? What do I do here? Should I tell her my true feelings or just play nice like I have been the last two years? As of right now the only push back I’ve given them is that I told her I was disappointed he didn’t have a talk with me before asking her hand in marriage. I love my daughter with all my heart and I will do anything in the world to protect her but I am terrified I will lose her if I come on too strong. You guys should’ve heard this jerk call me dad last night on the phone and jokingly ask me how much money I’m going to give them for the wedding and if I’m going to pay for it. What’s your guys divorce attorney‘s name? If I’m going to pay for anything it’s going to be putting him on retainer. I love your show because you always keep it real and I look forward to your raw honest truth on my current situation. 

Sincerely,

Disappointed Dad in Wheaton