I'm not sure there's really any wrong or right way to go about that. I'm sure people have written blogs listing out their opinions of how they think such a plot should be written, but what makes a good romance is pretty subjective anyway. I'd say go with your gut. If a part makes you feel really unsure, then cut it, and otherwise write what sounds right to you and let others beta it just in case. If you've got experience you should know best how not to cross that line into abuse and in the end, if you do offend someone, you know you had no intention of it and that counts. In the end, sometimes the only one you can ensure is happy with your writing is yourself.