No, not true that both of those sentences are reflexive.
You only have a reflexive construction when the person of the pronoun
(me, te, nos, ...) matches the person of the verb (lavo, lavas,
lavamos, ...).
If you wash yourself, if he washes himself, if they wash themselves,
it's reflexive: Te lavas. Se lava. Se lavan.
If you wash it, if I wash them, if he washes you, etc., it's not reflexive: Lo lavas. Los lavo. Te lava.
1 Me aburri'an. They were boring me.
2 Me aburri'a. I was boring myself. (This
may be thought of as the way you say 'I was getting bored' in Spanish.)
3 Se aburri'an. They were boring themselves. / They were getting bored.
1 is not reflexive. 2 and 3 are.
Jim